/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:56:05,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:56:05,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:56:05,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:56:05,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:56:05,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:56:05,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:56:05,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:56:05,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:56:05,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:56:05,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:56:05,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:56:05,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:56:05,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:56:05,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:56:05,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:56:05,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:56:05,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:56:05,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:56:05,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:56:05,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:56:05,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:56:05,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:56:05,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:56:05,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 10:56:05,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:56:05,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:56:05,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:56:05,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:56:05,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:56:05,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:56:05,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:56:05,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:56:05,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:56:05,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:56:05,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:56:05,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:56:05,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:56:05,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:56:05,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:56:05,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:56:05,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:56:05,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:56:05,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:56:05,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:56:05,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:56:05,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:56:05,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:56:05,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:56:05,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:56:05,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:56:05,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:56:05,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:56:05,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:56:05,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:56:05,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:56:05,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:56:05,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:56:05,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:56:05,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:56:05,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:56:05,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:56:05,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:56:05,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:56:05,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:56:05,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:56:05,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:56:06,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:56:06,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:56:06,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:56:06,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:56:06,197 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:56:06,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-10-16 10:56:06,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d77f61050/853e26e32fc54b0cbba1b31d0f7352f7/FLAG663aa3200 [2020-10-16 10:56:06,881 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:56:06,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-10-16 10:56:06,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d77f61050/853e26e32fc54b0cbba1b31d0f7352f7/FLAG663aa3200 [2020-10-16 10:56:07,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d77f61050/853e26e32fc54b0cbba1b31d0f7352f7 [2020-10-16 10:56:07,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:56:07,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:56:07,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:56:07,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:56:07,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:56:07,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f72c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07, skipping insertion in model container [2020-10-16 10:56:07,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:56:07,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:56:07,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:56:07,781 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:56:07,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:56:07,929 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:56:07,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07 WrapperNode [2020-10-16 10:56:07,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:56:07,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:56:07,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:56:07,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:56:07,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:56:07,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:56:07,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:56:07,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:56:07,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:07,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:08,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:08,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:08,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... [2020-10-16 10:56:08,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:56:08,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:56:08,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:56:08,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:56:08,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 10:56:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 10:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:56:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:56:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:56:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:56:08,096 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:56:08,757 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:56:08,758 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-16 10:56:08,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:56:08 BoogieIcfgContainer [2020-10-16 10:56:08,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:56:08,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:56:08,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:56:08,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:56:08,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:56:07" (1/3) ... [2020-10-16 10:56:08,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c165d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:56:08, skipping insertion in model container [2020-10-16 10:56:08,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:07" (2/3) ... [2020-10-16 10:56:08,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c165d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:56:08, skipping insertion in model container [2020-10-16 10:56:08,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:56:08" (3/3) ... [2020-10-16 10:56:08,771 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2020-10-16 10:56:08,783 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:56:08,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:56:08,791 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 10:56:08,793 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:56:08,816 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,818 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,819 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,819 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,820 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,820 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,820 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,821 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,827 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:08,833 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 10:56:08,847 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 10:56:08,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:56:08,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:56:08,869 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:56:08,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:56:08,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:56:08,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:56:08,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:56:08,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:56:08,882 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:56:08,885 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 91 flow [2020-10-16 10:56:08,888 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 43 transitions, 91 flow [2020-10-16 10:56:08,890 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-10-16 10:56:08,923 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-10-16 10:56:08,923 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 10:56:08,928 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-10-16 10:56:08,930 INFO L117 LiptonReduction]: Number of co-enabled transitions 378 [2020-10-16 10:56:10,018 INFO L132 LiptonReduction]: Checked pairs total: 798 [2020-10-16 10:56:10,018 INFO L134 LiptonReduction]: Total number of compositions: 32 [2020-10-16 10:56:10,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2020-10-16 10:56:10,036 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 38 states. [2020-10-16 10:56:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-16 10:56:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 10:56:10,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:10,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 10:56:10,046 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:10,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:10,052 INFO L82 PathProgramCache]: Analyzing trace with hash 10250802, now seen corresponding path program 1 times [2020-10-16 10:56:10,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:10,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309851046] [2020-10-16 10:56:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:10,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309851046] [2020-10-16 10:56:10,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:10,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 10:56:10,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320469524] [2020-10-16 10:56:10,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:10,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:10,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:10,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:10,270 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-10-16 10:56:10,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:10,296 INFO L93 Difference]: Finished difference Result 29 states and 50 transitions. [2020-10-16 10:56:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:10,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 10:56:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:10,307 INFO L225 Difference]: With dead ends: 29 [2020-10-16 10:56:10,307 INFO L226 Difference]: Without dead ends: 22 [2020-10-16 10:56:10,309 INFO L677 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 [2020-10-16 10:56:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-16 10:56:10,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-16 10:56:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-16 10:56:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 38 transitions. [2020-10-16 10:56:10,341 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 38 transitions. Word has length 4 [2020-10-16 10:56:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:10,341 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 38 transitions. [2020-10-16 10:56:10,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2020-10-16 10:56:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 10:56:10,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:10,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 10:56:10,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:56:10,343 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:10,343 INFO L82 PathProgramCache]: Analyzing trace with hash 317781255, now seen corresponding path program 1 times [2020-10-16 10:56:10,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:10,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286873843] [2020-10-16 10:56:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:10,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286873843] [2020-10-16 10:56:10,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:10,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:56:10,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298056233] [2020-10-16 10:56:10,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:10,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:10,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:10,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:10,414 INFO L87 Difference]: Start difference. First operand 22 states and 38 transitions. Second operand 3 states. [2020-10-16 10:56:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:10,422 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2020-10-16 10:56:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:10,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 10:56:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:10,423 INFO L225 Difference]: With dead ends: 21 [2020-10-16 10:56:10,424 INFO L226 Difference]: Without dead ends: 18 [2020-10-16 10:56:10,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-16 10:56:10,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-16 10:56:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-16 10:56:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-10-16 10:56:10,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 27 transitions. Word has length 5 [2020-10-16 10:56:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:10,429 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-16 10:56:10,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-10-16 10:56:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 10:56:10,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:10,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:10,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:56:10,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:10,431 INFO L82 PathProgramCache]: Analyzing trace with hash 438816069, now seen corresponding path program 1 times [2020-10-16 10:56:10,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:10,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802954327] [2020-10-16 10:56:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:10,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802954327] [2020-10-16 10:56:10,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:10,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:56:10,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642974471] [2020-10-16 10:56:10,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:10,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:10,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:10,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:10,481 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. Second operand 3 states. [2020-10-16 10:56:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:10,493 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2020-10-16 10:56:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:10,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 10:56:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:10,495 INFO L225 Difference]: With dead ends: 14 [2020-10-16 10:56:10,495 INFO L226 Difference]: Without dead ends: 14 [2020-10-16 10:56:10,495 INFO L677 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 [2020-10-16 10:56:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-16 10:56:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-16 10:56:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-16 10:56:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-10-16 10:56:10,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 7 [2020-10-16 10:56:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:10,499 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-10-16 10:56:10,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-10-16 10:56:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:56:10,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:10,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:10,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:56:10,501 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:10,501 INFO L82 PathProgramCache]: Analyzing trace with hash 764279846, now seen corresponding path program 1 times [2020-10-16 10:56:10,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:10,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275065862] [2020-10-16 10:56:10,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:10,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275065862] [2020-10-16 10:56:10,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:10,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:56:10,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179557499] [2020-10-16 10:56:10,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 10:56:10,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:10,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 10:56:10,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 10:56:10,604 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand 4 states. [2020-10-16 10:56:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:10,612 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2020-10-16 10:56:10,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 10:56:10,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 10:56:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:10,614 INFO L225 Difference]: With dead ends: 13 [2020-10-16 10:56:10,614 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 10:56:10,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 10:56:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 10:56:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 10:56:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 10:56:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 10:56:10,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-16 10:56:10,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:10,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 10:56:10,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 10:56:10,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 10:56:10,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 10:56:10,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:56:10,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:56:10 BasicIcfg [2020-10-16 10:56:10,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:56:10,623 INFO L168 Benchmark]: Toolchain (without parser) took 3433.78 ms. Allocated memory was 144.2 MB in the beginning and 252.2 MB in the end (delta: 108.0 MB). Free memory was 98.1 MB in the beginning and 173.2 MB in the end (delta: -75.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:10,624 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 10:56:10,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.88 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 97.9 MB in the beginning and 157.8 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:10,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:10,637 INFO L168 Benchmark]: Boogie Preprocessor took 32.78 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:10,638 INFO L168 Benchmark]: RCFGBuilder took 746.00 ms. Allocated memory is still 201.3 MB. Free memory was 153.5 MB in the beginning and 109.8 MB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:10,639 INFO L168 Benchmark]: TraceAbstraction took 1858.85 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 109.1 MB in the beginning and 173.2 MB in the end (delta: -64.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 10:56:10,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.88 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 97.9 MB in the beginning and 157.8 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.78 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 746.00 ms. Allocated memory is still 201.3 MB. Free memory was 153.5 MB in the beginning and 109.8 MB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1858.85 ms. Allocated memory was 201.3 MB in the beginning and 252.2 MB in the end (delta: 50.9 MB). Free memory was 109.1 MB in the beginning and 173.2 MB in the end (delta: -64.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 244 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 38 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 45 PlacesBefore, 17 PlacesAfterwards, 43 TransitionsBefore, 14 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 32 TotalNumberOfCompositions, 798 MoverChecksTotal - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 710]: 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, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 40 SDtfs, 14 SDslu, 20 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...