/usr/bin/java -Xmx16000000000 -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-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:40:53,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:40:53,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:40:53,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:40:53,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:40:53,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:40:53,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:40:53,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:40:53,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:40:53,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:40:53,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:40:53,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:40:53,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:40:53,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:40:53,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:40:53,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:40:53,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:40:53,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:40:53,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:40:53,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:40:53,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:40:53,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:40:53,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:40:53,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:40:53,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:40:53,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:40:53,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:40:53,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:40:53,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:40:53,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:40:53,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:40:53,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:40:53,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:40:53,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:40:53,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:40:53,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:40:53,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:40:53,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:40:53,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:40:53,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:40:53,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:40:53,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:40:53,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:40:53,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:40:53,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:40:53,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:40:53,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:40:53,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:40:53,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:40:53,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:40:53,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:40:53,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:40:53,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:40:53,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:40:53,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:40:53,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:40:53,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:40:53,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:40:53,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:40:53,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:40:53,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:40:53,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:40:53,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:40:53,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:40:53,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:40:53,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:40:53,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:40:54,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:40:54,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:40:54,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:40:54,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:40:54,269 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:40:54,270 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-10-15 18:40:54,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7738a7a/6de9f039e26d4752b662b26aa756950d/FLAG87a4bd304 [2020-10-15 18:40:54,886 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:40:54,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2020-10-15 18:40:54,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7738a7a/6de9f039e26d4752b662b26aa756950d/FLAG87a4bd304 [2020-10-15 18:40:55,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7738a7a/6de9f039e26d4752b662b26aa756950d [2020-10-15 18:40:55,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:40:55,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:40:55,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:55,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:40:55,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:40:55,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84c65bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55, skipping insertion in model container [2020-10-15 18:40:55,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:40:55,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:40:55,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:55,670 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:40:55,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:40:55,786 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:40:55,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55 WrapperNode [2020-10-15 18:40:55,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:40:55,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:55,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:40:55,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:40:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:40:55,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:40:55,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:40:55,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:40:55,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (1/1) ... [2020-10-15 18:40:55,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:40:55,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:40:55,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:40:55,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:40:55,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (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 [2020-10-15 18:40:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:40:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:40:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:40:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:40:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:40:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:40:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:40:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:40:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:40:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:40:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:40:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:40:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:40:55,944 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:40:56,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:40:56,339 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:40:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:56 BoogieIcfgContainer [2020-10-15 18:40:56,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:40:56,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:40:56,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:40:56,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:40:56,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:40:55" (1/3) ... [2020-10-15 18:40:56,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734beb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:56, skipping insertion in model container [2020-10-15 18:40:56,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:40:55" (2/3) ... [2020-10-15 18:40:56,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734beb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:40:56, skipping insertion in model container [2020-10-15 18:40:56,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:40:56" (3/3) ... [2020-10-15 18:40:56,351 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2020-10-15 18:40:56,364 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:40:56,364 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:40:56,372 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:40:56,373 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:40:56,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,402 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,411 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,411 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,423 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,424 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:40:56,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:40:56,457 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:40:56,457 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:40:56,457 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:40:56,457 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:40:56,457 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:40:56,458 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:40:56,458 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:40:56,458 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:40:56,471 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:40:56,474 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 18:40:56,477 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 18:40:56,480 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-15 18:40:56,528 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-15 18:40:56,528 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:40:56,534 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:40:56,537 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:40:57,908 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-15 18:40:57,909 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 18:40:57,916 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 18:40:57,945 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 18:40:57,947 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 18:40:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:40:57,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:57,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:57,957 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-15 18:40:57,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:57,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690753588] [2020-10-15 18:40:57,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:58,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690753588] [2020-10-15 18:40:58,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:58,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:40:58,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870101044] [2020-10-15 18:40:58,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:40:58,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:58,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:40:58,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:40:58,161 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 18:40:58,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:58,196 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 18:40:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:40:58,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 18:40:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:58,220 INFO L225 Difference]: With dead ends: 362 [2020-10-15 18:40:58,220 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 18:40:58,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:40:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 18:40:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 18:40:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 18:40:58,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 18:40:58,298 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 18:40:58,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:58,299 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 18:40:58,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:40:58,299 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 18:40:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:40:58,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:58,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:58,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:40:58,302 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:58,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:58,303 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-15 18:40:58,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:58,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121120163] [2020-10-15 18:40:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:58,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121120163] [2020-10-15 18:40:58,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:58,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:40:58,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742199960] [2020-10-15 18:40:58,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:40:58,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:58,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:40:58,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:40:58,453 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 18:40:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:58,499 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 18:40:58,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:40:58,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:40:58,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:58,504 INFO L225 Difference]: With dead ends: 330 [2020-10-15 18:40:58,504 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 18:40:58,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 18:40:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 18:40:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 18:40:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 18:40:58,529 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 18:40:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:58,529 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 18:40:58,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:40:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 18:40:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:40:58,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:58,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:58,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:40:58,532 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:58,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:58,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-10-15 18:40:58,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:58,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875283195] [2020-10-15 18:40:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:58,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:58,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875283195] [2020-10-15 18:40:58,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:58,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:58,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130142983] [2020-10-15 18:40:58,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:40:58,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:58,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:40:58,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:58,678 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 18:40:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:58,768 INFO L93 Difference]: Finished difference Result 326 states and 882 transitions. [2020-10-15 18:40:58,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:40:58,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 18:40:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:58,772 INFO L225 Difference]: With dead ends: 326 [2020-10-15 18:40:58,772 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 18:40:58,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:40:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 18:40:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 18:40:58,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 18:40:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-15 18:40:58,784 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 10 [2020-10-15 18:40:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:58,785 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-15 18:40:58,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:40:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-15 18:40:58,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:40:58,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:58,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:58,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:40:58,787 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:58,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-10-15 18:40:58,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:58,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318036517] [2020-10-15 18:40:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:58,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318036517] [2020-10-15 18:40:58,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:58,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:58,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615878521] [2020-10-15 18:40:58,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:40:58,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:58,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:40:58,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:58,851 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 5 states. [2020-10-15 18:40:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:58,906 INFO L93 Difference]: Finished difference Result 194 states and 470 transitions. [2020-10-15 18:40:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:40:58,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 18:40:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:58,908 INFO L225 Difference]: With dead ends: 194 [2020-10-15 18:40:58,908 INFO L226 Difference]: Without dead ends: 74 [2020-10-15 18:40:58,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:40:58,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-15 18:40:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-15 18:40:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-15 18:40:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-15 18:40:58,914 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 12 [2020-10-15 18:40:58,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:58,914 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-15 18:40:58,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:40:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-15 18:40:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:40:58,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:40:58,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:40:58,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:40:58,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:40:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:40:58,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-15 18:40:58,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:40:58,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329288556] [2020-10-15 18:40:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:40:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:40:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:40:58,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329288556] [2020-10-15 18:40:58,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:40:58,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:40:58,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213691804] [2020-10-15 18:40:58,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:40:58,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:40:58,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:40:58,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:40:58,978 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-15 18:40:59,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:40:59,016 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-15 18:40:59,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:40:59,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:40:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:40:59,017 INFO L225 Difference]: With dead ends: 62 [2020-10-15 18:40:59,017 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:40:59,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:40:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:40:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:40:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:40:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:40:59,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 18:40:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:40:59,019 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:40:59,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:40:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:40:59,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:40:59,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:40:59,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:40:59 BasicIcfg [2020-10-15 18:40:59,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:40:59,026 INFO L168 Benchmark]: Toolchain (without parser) took 3864.83 ms. Allocated memory was 248.0 MB in the beginning and 367.0 MB in the end (delta: 119.0 MB). Free memory was 202.5 MB in the beginning and 299.3 MB in the end (delta: -96.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,027 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 248.0 MB. Free memory was 226.0 MB in the beginning and 225.2 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.44 ms. Allocated memory was 248.0 MB in the beginning and 304.1 MB in the end (delta: 56.1 MB). Free memory was 202.5 MB in the beginning and 255.6 MB in the end (delta: -53.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 304.1 MB. Free memory was 255.6 MB in the beginning and 253.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,030 INFO L168 Benchmark]: Boogie Preprocessor took 28.25 ms. Allocated memory is still 304.1 MB. Free memory was 253.9 MB in the beginning and 252.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,031 INFO L168 Benchmark]: RCFGBuilder took 476.57 ms. Allocated memory is still 304.1 MB. Free memory was 252.2 MB in the beginning and 229.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:40:59,032 INFO L168 Benchmark]: TraceAbstraction took 2679.62 ms. Allocated memory was 304.1 MB in the beginning and 367.0 MB in the end (delta: 62.9 MB). Free memory was 229.1 MB in the beginning and 299.3 MB in the end (delta: -70.2 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:40:59,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 248.0 MB. Free memory was 226.0 MB in the beginning and 225.2 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 625.44 ms. Allocated memory was 248.0 MB in the beginning and 304.1 MB in the end (delta: 56.1 MB). Free memory was 202.5 MB in the beginning and 255.6 MB in the end (delta: -53.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 304.1 MB. Free memory was 255.6 MB in the beginning and 253.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.25 ms. Allocated memory is still 304.1 MB. Free memory was 253.9 MB in the beginning and 252.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 476.57 ms. Allocated memory is still 304.1 MB. Free memory was 252.2 MB in the beginning and 229.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2679.62 ms. Allocated memory was 304.1 MB in the beginning and 367.0 MB in the end (delta: 62.9 MB). Free memory was 229.1 MB in the beginning and 299.3 MB in the end (delta: -70.2 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 879 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 81 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 110 SDtfs, 125 SDslu, 139 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...