/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_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:46:57,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:46:57,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:46:57,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:46:57,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:46:57,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:46:57,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:46:57,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:46:57,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:46:57,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:46:57,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:46:57,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:46:57,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:46:57,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:46:57,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:46:57,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:46:57,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:46:57,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:46:57,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:46:57,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:46:57,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:46:57,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:46:57,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:46:57,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:46:57,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:46:57,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:46:57,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:46:57,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:46:57,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:46:57,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:46:57,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:46:57,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:46:57,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:46:57,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:46:57,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:46:57,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:46:57,706 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 22:46:57,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:46:57,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:46:57,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:46:57,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:46:57,722 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:46:57,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:46:57,722 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:46:57,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:46:57,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:46:57,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:46:57,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:46:57,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:46:57,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:46:57,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:46:57,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:46:57,724 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:46:57,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:46:57,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:46:57,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:46:57,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:46:57,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:46:57,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:46:57,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:46:57,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:46:57,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:46:57,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:46:57,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:46:57,727 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:46:57,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:46:57,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:46:57,728 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:46:57,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:46:58,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:46:58,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:46:58,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:46:58,055 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:46:58,056 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:46:58,056 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-27 22:46:58,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8e0999f/646432bc40c349daaa0d0553a2146980/FLAG21d00f193 [2019-12-27 22:46:58,649 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:46:58,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-27 22:46:58,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8e0999f/646432bc40c349daaa0d0553a2146980/FLAG21d00f193 [2019-12-27 22:46:58,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8e0999f/646432bc40c349daaa0d0553a2146980 [2019-12-27 22:46:58,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:46:58,930 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:46:58,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:46:58,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:46:58,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:46:58,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:46:58" (1/1) ... [2019-12-27 22:46:58,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e06cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:58, skipping insertion in model container [2019-12-27 22:46:58,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:46:58" (1/1) ... [2019-12-27 22:46:58,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:46:59,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:46:59,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:46:59,535 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:46:59,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:46:59,663 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:46:59,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59 WrapperNode [2019-12-27 22:46:59,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:46:59,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:46:59,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:46:59,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:46:59,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:46:59,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:46:59,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:46:59,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:46:59,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:46:59,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:46:59,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:46:59,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:46:59,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (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 22:46:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:46:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:46:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:46:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:46:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:46:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:46:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:46:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:46:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:46:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:46:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:46:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:46:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:46:59,827 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 22:47:00,212 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:47:00,212 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:47:00,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:00 BoogieIcfgContainer [2019-12-27 22:47:00,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:47:00,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:47:00,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:47:00,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:47:00,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:46:58" (1/3) ... [2019-12-27 22:47:00,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a94f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:00, skipping insertion in model container [2019-12-27 22:47:00,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59" (2/3) ... [2019-12-27 22:47:00,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a94f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:00, skipping insertion in model container [2019-12-27 22:47:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:00" (3/3) ... [2019-12-27 22:47:00,222 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2019-12-27 22:47:00,232 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:47:00,233 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:47:00,244 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:47:00,245 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:47:00,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,277 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,277 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,277 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,277 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,279 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,279 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,279 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,279 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,280 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,280 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,285 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,288 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,289 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,289 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,289 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,292 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,293 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,293 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:00,308 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:47:00,324 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:47:00,324 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:47:00,324 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:47:00,325 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:47:00,325 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:47:00,325 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:47:00,325 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:47:00,325 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:47:00,338 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:47:00,340 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:00,382 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:00,382 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:00,388 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 22:47:00,391 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:00,414 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:00,414 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:00,417 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 22:47:00,420 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:47:00,421 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:47:01,600 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:47:01,765 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 22:47:01,802 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 22:47:01,802 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:47:01,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:47:01,816 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:47:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:47:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:47:01,825 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:01,825 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:01,826 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:01,832 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 22:47:01,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:01,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908279985] [2019-12-27 22:47:01,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,066 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 22:47:02,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908279985] [2019-12-27 22:47:02,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:02,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [902877791] [2019-12-27 22:47:02,072 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,078 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,091 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:47:02,091 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,094 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:02,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:02,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:02,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:02,108 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:47:02,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,147 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:47:02,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:02,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:47:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,177 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:47:02,177 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:47:02,179 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 22:47:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:47:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:47:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:47:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:47:02,225 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:47:02,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,227 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:47:02,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:47:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:47:02,228 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,228 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,228 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-27 22:47:02,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592180855] [2019-12-27 22:47:02,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,302 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 22:47:02,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592180855] [2019-12-27 22:47:02,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:02,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1124168512] [2019-12-27 22:47:02,303 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,306 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,312 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:47:02,313 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,317 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:02,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:02,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:02,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:02,319 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:47:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,326 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:47:02,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:02,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:47:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,329 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:02,329 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:47:02,330 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 22:47:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:47:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:47:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:47:02,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:47:02,339 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 22:47:02,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,342 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:47:02,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:47:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:47:02,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,344 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,344 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,345 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 22:47:02,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938281027] [2019-12-27 22:47:02,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,546 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 22:47:02,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938281027] [2019-12-27 22:47:02,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 22:47:02,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [445024849] [2019-12-27 22:47:02,547 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,548 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,550 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:47:02,550 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,551 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:02,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 22:47:02,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 22:47:02,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:47:02,552 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 6 states. [2019-12-27 22:47:02,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,639 INFO L93 Difference]: Finished difference Result 32 states and 57 transitions. [2019-12-27 22:47:02,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 22:47:02,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 22:47:02,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,643 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:02,643 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 22:47:02,644 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 22:47:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 22:47:02,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 22:47:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 22:47:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-27 22:47:02,648 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-27 22:47:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,648 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-27 22:47:02,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 22:47:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-27 22:47:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:02,649 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,649 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,650 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,650 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-27 22:47:02,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174684839] [2019-12-27 22:47:02,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,690 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 22:47:02,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174684839] [2019-12-27 22:47:02,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:02,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1520295363] [2019-12-27 22:47:02,692 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,693 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,695 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:47:02,696 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,751 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:47:02,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:47:02,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:47:02,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:47:02,753 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 5 states. [2019-12-27 22:47:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,790 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-27 22:47:02,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:02,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:47:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,792 INFO L225 Difference]: With dead ends: 27 [2019-12-27 22:47:02,792 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 22:47:02,792 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 22:47:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 22:47:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 22:47:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 22:47:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 22:47:02,795 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-27 22:47:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,795 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 22:47:02,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:47:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 22:47:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:02,796 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,796 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,797 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,797 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 2 times [2019-12-27 22:47:02,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875268124] [2019-12-27 22:47:02,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,853 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 22:47:02,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875268124] [2019-12-27 22:47:02,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:02,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [939410843] [2019-12-27 22:47:02,854 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,855 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,857 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:47:02,857 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,858 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:02,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:02,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:02,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:02,859 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 22:47:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,881 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 22:47:02,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:02,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,882 INFO L225 Difference]: With dead ends: 18 [2019-12-27 22:47:02,882 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 22:47:02,883 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 22:47:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 22:47:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 22:47:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 22:47:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 22:47:02,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 22:47:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,885 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 22:47:02,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:02,885 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 22:47:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:02,885 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,885 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,885 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-27 22:47:02,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632581371] [2019-12-27 22:47:02,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:02,924 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 22:47:02,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632581371] [2019-12-27 22:47:02,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:02,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:47:02,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [844211156] [2019-12-27 22:47:02,925 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:02,926 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:02,928 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:47:02,928 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:02,929 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:02,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:02,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:02,930 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 22:47:02,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:02,943 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 22:47:02,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:02,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:02,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:02,943 INFO L225 Difference]: With dead ends: 11 [2019-12-27 22:47:02,944 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:47:02,944 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 22:47:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:47:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:47:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:47:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:47:02,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:47:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:02,945 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:47:02,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:47:02,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:47:02,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:47:02 BasicIcfg [2019-12-27 22:47:02,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:47:02,952 INFO L168 Benchmark]: Toolchain (without parser) took 4021.87 ms. Allocated memory was 147.8 MB in the beginning and 243.3 MB in the end (delta: 95.4 MB). Free memory was 104.3 MB in the beginning and 104.4 MB in the end (delta: -177.3 kB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,952 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.96 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 104.1 MB in the beginning and 159.5 MB in the end (delta: -55.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.63 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,955 INFO L168 Benchmark]: Boogie Preprocessor took 24.16 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 155.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,956 INFO L168 Benchmark]: RCFGBuilder took 459.02 ms. Allocated memory is still 203.9 MB. Free memory was 155.6 MB in the beginning and 134.5 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,957 INFO L168 Benchmark]: TraceAbstraction took 2735.15 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 134.5 MB in the beginning and 104.4 MB in the end (delta: 30.1 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:02,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.96 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 104.1 MB in the beginning and 159.5 MB in the end (delta: -55.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.63 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.16 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 155.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.02 ms. Allocated memory is still 203.9 MB. Free memory was 155.6 MB in the beginning and 134.5 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2735.15 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 134.5 MB in the beginning and 104.4 MB in the end (delta: 30.1 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 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: 2.6s, 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, 0.2s 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...