/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:47:14,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:47:14,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:47:14,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:47:14,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:47:14,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:47:14,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:47:14,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:47:14,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:47:14,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:47:14,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:47:14,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:47:14,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:47:14,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:47:14,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:47:14,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:47:14,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:47:14,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:47:14,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:47:14,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:47:14,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:47:14,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:47:14,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:47:14,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:47:14,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:47:14,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:47:14,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:47:14,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:47:14,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:47:14,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:47:14,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:47:14,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:47:14,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:47:14,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:47:14,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:47:14,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:47:14,739 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-NoLbe.epf [2019-12-27 08:47:14,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:47:14,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:47:14,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:47:14,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:47:14,755 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:47:14,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:47:14,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:47:14,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:47:14,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:47:14,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:47:14,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:47:14,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:47:14,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:47:14,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:47:14,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:47:14,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:47:14,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:14,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:47:14,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:47:14,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:47:14,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:47:14,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:47:14,759 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:47:14,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:47:14,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:47:15,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:47:15,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:47:15,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:47:15,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:47:15,055 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:47:15,055 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-27 08:47:15,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbfa205b/067f18766fc944ef80508f024ff6771f/FLAG4d807f3e5 [2019-12-27 08:47:15,681 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:47:15,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2019-12-27 08:47:15,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbfa205b/067f18766fc944ef80508f024ff6771f/FLAG4d807f3e5 [2019-12-27 08:47:15,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbfa205b/067f18766fc944ef80508f024ff6771f [2019-12-27 08:47:15,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:47:15,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:47:15,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:15,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:47:15,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:47:15,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2087fe27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15, skipping insertion in model container [2019-12-27 08:47:15,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:16,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:47:16,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:47:16,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:16,559 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:47:16,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:16,705 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:47:16,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16 WrapperNode [2019-12-27 08:47:16,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:16,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:16,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:47:16,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:47:16,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:16,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:47:16,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:47:16,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:47:16,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (1/1) ... [2019-12-27 08:47:16,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:47:16,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:47:16,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:47:16,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:47:16,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (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 08:47:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 08:47:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:47:16,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:47:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:47:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:47:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:47:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 08:47:16,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:47:16,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:47:16,873 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 08:47:17,019 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 08:47:17,021 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-27 08:47:17,021 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 08:47:17,026 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 08:47:17,156 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 08:47:17,158 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 08:47:17,264 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:47:17,265 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:47:17,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:17 BoogieIcfgContainer [2019-12-27 08:47:17,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:47:17,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:47:17,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:47:17,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:47:17,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:47:15" (1/3) ... [2019-12-27 08:47:17,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a02caf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:17, skipping insertion in model container [2019-12-27 08:47:17,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:16" (2/3) ... [2019-12-27 08:47:17,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a02caf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:17, skipping insertion in model container [2019-12-27 08:47:17,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:17" (3/3) ... [2019-12-27 08:47:17,275 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-12-27 08:47:17,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:47:17,286 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:47:17,293 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:47:17,294 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:47:17,327 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,329 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,329 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,329 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,329 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,330 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,331 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,331 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,331 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,331 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,332 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,333 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,333 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,333 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,333 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,334 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,334 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,338 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,339 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,339 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,339 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,340 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,340 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,340 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,340 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,341 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,341 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,341 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,341 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,342 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:17,358 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:47:17,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:47:17,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:47:17,376 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:47:17,376 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:47:17,376 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:47:17,376 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:47:17,377 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:47:17,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:47:17,387 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions [2019-12-27 08:47:17,422 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 255 states. [2019-12-27 08:47:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-12-27 08:47:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 08:47:17,435 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:17,437 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:17,437 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:17,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1261052757, now seen corresponding path program 1 times [2019-12-27 08:47:17,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:17,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034707285] [2019-12-27 08:47:17,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:17,736 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 08:47:17,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034707285] [2019-12-27 08:47:17,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:17,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:17,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699591406] [2019-12-27 08:47:17,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:17,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:17,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:17,762 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2019-12-27 08:47:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:17,806 INFO L93 Difference]: Finished difference Result 255 states and 475 transitions. [2019-12-27 08:47:17,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:17,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-27 08:47:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:17,824 INFO L225 Difference]: With dead ends: 255 [2019-12-27 08:47:17,825 INFO L226 Difference]: Without dead ends: 215 [2019-12-27 08:47:17,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:47:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-12-27 08:47:17,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-12-27 08:47:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-12-27 08:47:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 391 transitions. [2019-12-27 08:47:17,888 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 391 transitions. Word has length 20 [2019-12-27 08:47:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:17,889 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 391 transitions. [2019-12-27 08:47:17,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 391 transitions. [2019-12-27 08:47:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:17,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:17,891 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:17,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:17,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:17,892 INFO L82 PathProgramCache]: Analyzing trace with hash 661339700, now seen corresponding path program 1 times [2019-12-27 08:47:17,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:17,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435314819] [2019-12-27 08:47:17,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:17,960 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 08:47:17,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435314819] [2019-12-27 08:47:17,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:17,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:17,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166684715] [2019-12-27 08:47:17,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:17,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:17,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:17,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:17,964 INFO L87 Difference]: Start difference. First operand 215 states and 391 transitions. Second operand 3 states. [2019-12-27 08:47:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:17,999 INFO L93 Difference]: Finished difference Result 226 states and 392 transitions. [2019-12-27 08:47:18,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:18,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 08:47:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:18,003 INFO L225 Difference]: With dead ends: 226 [2019-12-27 08:47:18,004 INFO L226 Difference]: Without dead ends: 166 [2019-12-27 08:47:18,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:47:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-12-27 08:47:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2019-12-27 08:47:18,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-27 08:47:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 260 transitions. [2019-12-27 08:47:18,022 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 260 transitions. Word has length 22 [2019-12-27 08:47:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:18,022 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 260 transitions. [2019-12-27 08:47:18,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 260 transitions. [2019-12-27 08:47:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-27 08:47:18,024 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:18,024 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:18,025 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:18,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1608531331, now seen corresponding path program 1 times [2019-12-27 08:47:18,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:18,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284287330] [2019-12-27 08:47:18,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:18,092 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 08:47:18,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284287330] [2019-12-27 08:47:18,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:18,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:18,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459334775] [2019-12-27 08:47:18,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:18,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:18,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:18,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:18,112 INFO L87 Difference]: Start difference. First operand 154 states and 260 transitions. Second operand 3 states. [2019-12-27 08:47:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:18,147 INFO L93 Difference]: Finished difference Result 142 states and 230 transitions. [2019-12-27 08:47:18,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:18,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-27 08:47:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:18,149 INFO L225 Difference]: With dead ends: 142 [2019-12-27 08:47:18,149 INFO L226 Difference]: Without dead ends: 110 [2019-12-27 08:47:18,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:47:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-27 08:47:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-27 08:47:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-27 08:47:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 171 transitions. [2019-12-27 08:47:18,158 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 171 transitions. Word has length 24 [2019-12-27 08:47:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:18,159 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 171 transitions. [2019-12-27 08:47:18,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:18,159 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2019-12-27 08:47:18,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-27 08:47:18,160 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:18,161 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:18,161 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:18,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1024871123, now seen corresponding path program 1 times [2019-12-27 08:47:18,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:18,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528974034] [2019-12-27 08:47:18,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:18,229 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 08:47:18,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528974034] [2019-12-27 08:47:18,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:18,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:18,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213194702] [2019-12-27 08:47:18,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:18,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:18,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:18,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:18,231 INFO L87 Difference]: Start difference. First operand 110 states and 171 transitions. Second operand 3 states. [2019-12-27 08:47:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:18,247 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2019-12-27 08:47:18,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:18,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-12-27 08:47:18,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:18,249 INFO L225 Difference]: With dead ends: 110 [2019-12-27 08:47:18,249 INFO L226 Difference]: Without dead ends: 92 [2019-12-27 08:47:18,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:47:18,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-27 08:47:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-12-27 08:47:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-27 08:47:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2019-12-27 08:47:18,258 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 29 [2019-12-27 08:47:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:18,260 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2019-12-27 08:47:18,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2019-12-27 08:47:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-27 08:47:18,261 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:18,262 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:18,262 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:18,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:18,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1617502025, now seen corresponding path program 1 times [2019-12-27 08:47:18,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:18,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133500477] [2019-12-27 08:47:18,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:18,366 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 08:47:18,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133500477] [2019-12-27 08:47:18,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:18,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:47:18,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345317410] [2019-12-27 08:47:18,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:47:18,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:18,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:47:18,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:18,369 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand 4 states. [2019-12-27 08:47:18,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:18,422 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2019-12-27 08:47:18,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:47:18,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-27 08:47:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:18,423 INFO L225 Difference]: With dead ends: 36 [2019-12-27 08:47:18,423 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:47:18,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 08:47:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:47:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:47:18,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:47:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:47:18,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-12-27 08:47:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:18,427 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:47:18,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:47:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:47:18,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:47:18,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:47:18 BasicIcfg [2019-12-27 08:47:18,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:47:18,439 INFO L168 Benchmark]: Toolchain (without parser) took 2451.70 ms. Allocated memory was 136.8 MB in the beginning and 231.2 MB in the end (delta: 94.4 MB). Free memory was 100.1 MB in the beginning and 173.8 MB in the end (delta: -73.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,441 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.86 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 157.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.59 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,450 INFO L168 Benchmark]: Boogie Preprocessor took 35.94 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,451 INFO L168 Benchmark]: RCFGBuilder took 462.52 ms. Allocated memory is still 200.8 MB. Free memory was 154.1 MB in the beginning and 131.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:18,452 INFO L168 Benchmark]: TraceAbstraction took 1166.31 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 131.2 MB in the beginning and 173.8 MB in the end (delta: -42.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:47:18,462 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 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.86 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 157.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.59 ms. Allocated memory is still 200.8 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.94 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.52 ms. Allocated memory is still 200.8 MB. Free memory was 154.1 MB in the beginning and 131.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1166.31 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 131.2 MB in the beginning and 173.8 MB in the end (delta: -42.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 120 SDslu, 124 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 4749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...