/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.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:46:58,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:46:58,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:46:58,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:46:58,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:46:58,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:46:58,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:46:58,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:46:58,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:46:58,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:46:58,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:46:58,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:46:58,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:46:58,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:46:58,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:46:58,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:46:58,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:46:58,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:46:58,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:46:58,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:46:58,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:46:58,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:46:58,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:46:58,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:46:58,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:46:58,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:46:58,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:46:58,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:46:58,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:46:58,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:46:58,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:46:58,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:46:58,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:46:58,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:46:58,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:46:58,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:46:58,608 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 22:46:58,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:46:58,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:46:58,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:46:58,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:46:58,631 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:46:58,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:46:58,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:46:58,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:46:58,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:46:58,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:46:58,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:46:58,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:46:58,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:46:58,634 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:46:58,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:46:58,634 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:46:58,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:46:58,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:46:58,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:46:58,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:46:58,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:46:58,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:46:58,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:46:58,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:46:58,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:46:58,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:46:58,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:46:58,637 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:46:58,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:46:58,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:46:58,638 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:46:58,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:46:58,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:46:58,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:46:58,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:46:58,962 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:46:58,963 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:46:58,964 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2019-12-27 22:46:59,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1180e83b/61a44576a86b42648d15f0844c89238c/FLAGba0581d00 [2019-12-27 22:46:59,547 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:46:59,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2019-12-27 22:46:59,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1180e83b/61a44576a86b42648d15f0844c89238c/FLAGba0581d00 [2019-12-27 22:46:59,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1180e83b/61a44576a86b42648d15f0844c89238c [2019-12-27 22:46:59,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:46:59,897 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:46:59,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:46:59,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:46:59,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:46:59,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26845eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:46:59, skipping insertion in model container [2019-12-27 22:46:59,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:46:59" (1/1) ... [2019-12-27 22:46:59,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:46:59,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:47:00,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:47:00,512 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:47:00,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:47:00,663 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:47:00,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00 WrapperNode [2019-12-27 22:47:00,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:47:00,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:47:00,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:47:00,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:47:00,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:47:00,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:47:00,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:47:00,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:47:00,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (1/1) ... [2019-12-27 22:47:00,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:47:00,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:47:00,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:47:00,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:47:00,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (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 22:47:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:47:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:47:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:47:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:47:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:47:00,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:47:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:47:00,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:47:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:47:00,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:47:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:47:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:47:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:47:00,812 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 22:47:01,179 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:47:01,179 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:47:01,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:01 BoogieIcfgContainer [2019-12-27 22:47:01,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:47:01,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:47:01,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:47:01,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:47:01,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:46:59" (1/3) ... [2019-12-27 22:47:01,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f86a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:01, skipping insertion in model container [2019-12-27 22:47:01,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:47:00" (2/3) ... [2019-12-27 22:47:01,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f86a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:47:01, skipping insertion in model container [2019-12-27 22:47:01,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:47:01" (3/3) ... [2019-12-27 22:47:01,190 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2019-12-27 22:47:01,200 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:47:01,200 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:47:01,207 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:47:01,208 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:47:01,236 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,236 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,237 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,237 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,237 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,238 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,238 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,238 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,239 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,239 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,239 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,240 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,240 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,240 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,240 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,241 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,241 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,241 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,245 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,246 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,246 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,246 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,249 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,250 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,250 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,250 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,252 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,253 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,253 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,253 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:47:01,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:47:01,287 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:47:01,288 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:47:01,288 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:47:01,288 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:47:01,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:47:01,288 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:47:01,289 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:47:01,289 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:47:01,300 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:47:01,302 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:01,343 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:01,343 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:01,349 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 22:47:01,352 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:47:01,369 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:47:01,370 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:47:01,371 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 22:47:01,373 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:47:01,374 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:47:02,606 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:47:02,791 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 22:47:02,830 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 22:47:02,831 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:47:02,834 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:47:02,846 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:47:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:47:02,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:47:02,856 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:02,856 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:02,857 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:02,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:02,862 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 22:47:02,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:02,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096714554] [2019-12-27 22:47:02,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,100 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 22:47:03,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096714554] [2019-12-27 22:47:03,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:03,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [541864108] [2019-12-27 22:47:03,106 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,113 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,127 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:47:03,128 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,131 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:03,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:03,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:03,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:03,149 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:47:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:03,177 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:47:03,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:03,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:47:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:03,191 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:47:03,191 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:47:03,193 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 22:47:03,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:47:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:47:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:47:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:47:03,232 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:47:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:03,234 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:47:03,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:47:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:47:03,235 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:03,235 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:03,235 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:03,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:03,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-27 22:47:03,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:03,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885366033] [2019-12-27 22:47:03,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,355 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 22:47:03,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885366033] [2019-12-27 22:47:03,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:47:03,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1404564139] [2019-12-27 22:47:03,356 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,358 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,362 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:47:03,363 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,364 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:03,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:47:03,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:47:03,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:47:03,366 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:47:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:03,379 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:47:03,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:47:03,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:47:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:03,380 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:03,380 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:47:03,381 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 22:47:03,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:47:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:47:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:47:03,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:47:03,387 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 22:47:03,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:03,387 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:47:03,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:47:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:47:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:47:03,388 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:03,388 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:03,389 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:03,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:03,389 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 22:47:03,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:03,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682352753] [2019-12-27 22:47:03,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,540 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 22:47:03,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682352753] [2019-12-27 22:47:03,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 22:47:03,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2125387439] [2019-12-27 22:47:03,541 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,542 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,544 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:47:03,545 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,545 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:03,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 22:47:03,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 22:47:03,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:47:03,546 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 6 states. [2019-12-27 22:47:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:03,623 INFO L93 Difference]: Finished difference Result 32 states and 57 transitions. [2019-12-27 22:47:03,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 22:47:03,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 22:47:03,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:03,624 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:47:03,624 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 22:47:03,625 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-27 22:47:03,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 22:47:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 22:47:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 22:47:03,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-27 22:47:03,629 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-27 22:47:03,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:03,629 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-27 22:47:03,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 22:47:03,629 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-27 22:47:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:03,630 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:03,630 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:03,630 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:03,631 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-27 22:47:03,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:03,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760531057] [2019-12-27 22:47:03,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,727 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 22:47:03,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760531057] [2019-12-27 22:47:03,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:03,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1205022002] [2019-12-27 22:47:03,729 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,732 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,735 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:47:03,735 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,782 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:47:03,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:47:03,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:47:03,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:47:03,783 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 5 states. [2019-12-27 22:47:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:03,809 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-27 22:47:03,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:03,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:47:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:03,811 INFO L225 Difference]: With dead ends: 27 [2019-12-27 22:47:03,811 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 22:47:03,812 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 22:47:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 22:47:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 22:47:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 22:47:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 22:47:03,815 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-27 22:47:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:03,816 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 22:47:03,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:47:03,816 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 22:47:03,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:03,817 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:03,817 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:03,818 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:03,818 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 2 times [2019-12-27 22:47:03,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:03,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638375529] [2019-12-27 22:47:03,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,882 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 22:47:03,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638375529] [2019-12-27 22:47:03,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:47:03,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [509643290] [2019-12-27 22:47:03,884 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,885 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,887 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:47:03,887 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,888 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:03,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:03,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:03,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:03,889 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 22:47:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:03,915 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 22:47:03,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:03,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:03,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:03,916 INFO L225 Difference]: With dead ends: 18 [2019-12-27 22:47:03,916 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 22:47:03,916 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 22:47:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 22:47:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 22:47:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 22:47:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 22:47:03,919 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 22:47:03,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:03,919 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 22:47:03,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:03,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 22:47:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:47:03,920 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:47:03,921 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:47:03,921 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:47:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:47:03,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-27 22:47:03,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:47:03,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290647253] [2019-12-27 22:47:03,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:47:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:47:03,984 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 22:47:03,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290647253] [2019-12-27 22:47:03,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:47:03,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:47:03,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1623663835] [2019-12-27 22:47:03,985 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:47:03,986 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:47:03,987 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:47:03,988 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:47:03,988 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:47:03,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:47:03,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:47:03,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:47:03,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:47:03,989 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 22:47:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:47:04,005 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 22:47:04,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:47:04,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:47:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:47:04,006 INFO L225 Difference]: With dead ends: 11 [2019-12-27 22:47:04,006 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:47:04,007 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 22:47:04,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:47:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:47:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:47:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:47:04,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:47:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:47:04,008 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:47:04,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:47:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:47:04,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:47:04,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:47:04 BasicIcfg [2019-12-27 22:47:04,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:47:04,014 INFO L168 Benchmark]: Toolchain (without parser) took 4116.99 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 101.7 MB in the beginning and 122.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,015 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 22:47:04,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.70 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 157.8 MB in the end (delta: -56.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.59 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 154.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,017 INFO L168 Benchmark]: Boogie Preprocessor took 25.50 ms. Allocated memory is still 202.4 MB. Free memory was 154.8 MB in the beginning and 153.8 MB in the end (delta: 991.0 kB). Peak memory consumption was 991.0 kB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,018 INFO L168 Benchmark]: RCFGBuilder took 439.10 ms. Allocated memory is still 202.4 MB. Free memory was 153.8 MB in the beginning and 133.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,019 INFO L168 Benchmark]: TraceAbstraction took 2830.13 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 132.3 MB in the beginning and 122.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:47:04,023 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.70 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 157.8 MB in the end (delta: -56.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.59 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 154.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.50 ms. Allocated memory is still 202.4 MB. Free memory was 154.8 MB in the beginning and 153.8 MB in the end (delta: 991.0 kB). Peak memory consumption was 991.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 439.10 ms. Allocated memory is still 202.4 MB. Free memory was 153.8 MB in the beginning and 133.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2830.13 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 132.3 MB in the beginning and 122.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 56.1 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, 0.2s 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, 0.4s 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...