/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-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:53:36,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:53:36,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:53:36,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:53:36,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:53:36,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:53:36,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:53:36,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:53:36,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:53:36,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:53:36,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:53:36,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:53:36,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:53:36,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:53:36,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:53:36,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:53:36,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:53:36,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:53:36,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:53:36,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:53:36,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:53:36,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:53:36,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:53:36,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:53:36,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:53:36,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:53:36,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:53:36,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:53:36,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:53:36,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:53:36,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:53:36,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:53:36,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:53:36,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:53:36,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:53:36,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:53:36,628 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 [2020-10-05 22:53:36,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:53:36,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:53:36,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:53:36,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:53:36,656 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:53:36,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:53:36,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:53:36,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:53:36,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:53:36,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:53:36,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:53:36,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:53:36,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:53:36,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:53:36,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:53:36,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:53:36,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:53:36,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:53:36,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:53:36,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:53:36,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:53:36,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:53:36,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:53:36,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:53:36,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:53:36,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:53:36,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:53:36,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:53:36,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:53:36,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:53:36,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:53:36,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:53:36,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:53:36,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:53:36,988 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:53:36,989 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-05 22:53:37,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14613094c/9597182a00f64a1cbe868a8e7879bea3/FLAG54e09a0f3 [2020-10-05 22:53:37,611 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:53:37,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-05 22:53:37,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14613094c/9597182a00f64a1cbe868a8e7879bea3/FLAG54e09a0f3 [2020-10-05 22:53:37,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14613094c/9597182a00f64a1cbe868a8e7879bea3 [2020-10-05 22:53:37,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:53:37,886 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:53:37,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:37,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:53:37,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:53:37,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:37" (1/1) ... [2020-10-05 22:53:37,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8a6c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:37, skipping insertion in model container [2020-10-05 22:53:37,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:37" (1/1) ... [2020-10-05 22:53:37,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:53:37,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:53:38,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:38,456 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:53:38,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:38,579 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:53:38,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38 WrapperNode [2020-10-05 22:53:38,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:38,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:38,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:53:38,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:53:38,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:38,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:53:38,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:53:38,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:53:38,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (1/1) ... [2020-10-05 22:53:38,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:53:38,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:53:38,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:53:38,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:53:38,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (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 [2020-10-05 22:53:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:53:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:53:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:53:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:53:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:53:38,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:53:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:53:38,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:53:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:53:38,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:53:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:53:38,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:53:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:53:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:53:38,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:53:38,727 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:53:39,117 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:53:39,117 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:53:39,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:39 BoogieIcfgContainer [2020-10-05 22:53:39,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:53:39,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:53:39,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:53:39,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:53:39,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:53:37" (1/3) ... [2020-10-05 22:53:39,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101e1868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:39, skipping insertion in model container [2020-10-05 22:53:39,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:38" (2/3) ... [2020-10-05 22:53:39,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101e1868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:39, skipping insertion in model container [2020-10-05 22:53:39,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:39" (3/3) ... [2020-10-05 22:53:39,130 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-10-05 22:53:39,142 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:53:39,142 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:53:39,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:53:39,152 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:53:39,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,195 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,195 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,196 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,200 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,201 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,215 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,216 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,218 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,219 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:39,236 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:53:39,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:53:39,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:53:39,259 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:53:39,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:53:39,260 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:53:39,260 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:53:39,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:53:39,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:53:39,278 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:39,280 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:39,333 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-05 22:53:39,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:39,339 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-05 22:53:39,343 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-05 22:53:39,385 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-05 22:53:39,386 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:39,387 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-05 22:53:39,390 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-10-05 22:53:39,391 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:53:41,204 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-05 22:53:41,262 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-10-05 22:53:41,262 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-10-05 22:53:41,266 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-05 22:53:41,368 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-05 22:53:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-05 22:53:41,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:53:41,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:41,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:41,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:41,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:41,391 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-05 22:53:41,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:41,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946328948] [2020-10-05 22:53:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:41,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946328948] [2020-10-05 22:53:41,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:41,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:41,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624445514] [2020-10-05 22:53:41,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:53:41,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:41,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:53:41,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:53:41,627 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-05 22:53:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:41,716 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-05 22:53:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:53:41,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-05 22:53:41,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:41,769 INFO L225 Difference]: With dead ends: 1450 [2020-10-05 22:53:41,769 INFO L226 Difference]: Without dead ends: 1194 [2020-10-05 22:53:41,773 INFO L675 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 [2020-10-05 22:53:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-05 22:53:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-05 22:53:41,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-05 22:53:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-05 22:53:41,911 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-05 22:53:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:41,912 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-05 22:53:41,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:53:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-05 22:53:41,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:53:41,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:41,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:41,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:53:41,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:41,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:41,922 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-05 22:53:41,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:41,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368221185] [2020-10-05 22:53:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368221185] [2020-10-05 22:53:42,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317118830] [2020-10-05 22:53:42,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,134 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-05 22:53:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,177 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-05 22:53:42,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:53:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,188 INFO L225 Difference]: With dead ends: 1322 [2020-10-05 22:53:42,188 INFO L226 Difference]: Without dead ends: 1066 [2020-10-05 22:53:42,189 INFO L675 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 [2020-10-05 22:53:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-05 22:53:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-05 22:53:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-05 22:53:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-05 22:53:42,235 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-05 22:53:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,235 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-05 22:53:42,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-05 22:53:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:53:42,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:53:42,239 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-05 22:53:42,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802944247] [2020-10-05 22:53:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802944247] [2020-10-05 22:53:42,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302142202] [2020-10-05 22:53:42,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,348 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-05 22:53:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,380 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-05 22:53:42,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:53:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,390 INFO L225 Difference]: With dead ends: 1162 [2020-10-05 22:53:42,390 INFO L226 Difference]: Without dead ends: 970 [2020-10-05 22:53:42,391 INFO L675 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 [2020-10-05 22:53:42,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-05 22:53:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-05 22:53:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-05 22:53:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-05 22:53:42,431 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-05 22:53:42,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,432 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-05 22:53:42,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-05 22:53:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:53:42,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:53:42,434 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-10-05 22:53:42,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783872353] [2020-10-05 22:53:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783872353] [2020-10-05 22:53:42,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141548766] [2020-10-05 22:53:42,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,494 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-05 22:53:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,521 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-05 22:53:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 22:53:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,530 INFO L225 Difference]: With dead ends: 1042 [2020-10-05 22:53:42,531 INFO L226 Difference]: Without dead ends: 898 [2020-10-05 22:53:42,531 INFO L675 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 [2020-10-05 22:53:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-05 22:53:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-05 22:53:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-05 22:53:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-05 22:53:42,565 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-05 22:53:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,565 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-05 22:53:42,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-05 22:53:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:53:42,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:53:42,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,568 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-10-05 22:53:42,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166409691] [2020-10-05 22:53:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166409691] [2020-10-05 22:53:42,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:42,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791084977] [2020-10-05 22:53:42,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:42,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:42,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:42,673 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-10-05 22:53:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,709 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-10-05 22:53:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:42,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 22:53:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,717 INFO L225 Difference]: With dead ends: 952 [2020-10-05 22:53:42,718 INFO L226 Difference]: Without dead ends: 844 [2020-10-05 22:53:42,718 INFO L675 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 [2020-10-05 22:53:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-05 22:53:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-10-05 22:53:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-10-05 22:53:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-10-05 22:53:42,750 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-10-05 22:53:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,751 INFO L479 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-10-05 22:53:42,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-10-05 22:53:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:53:42,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:53:42,754 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1152352578, now seen corresponding path program 1 times [2020-10-05 22:53:42,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471921212] [2020-10-05 22:53:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471921212] [2020-10-05 22:53:42,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:42,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101287] [2020-10-05 22:53:42,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:42,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:42,841 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-10-05 22:53:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:42,889 INFO L93 Difference]: Finished difference Result 1063 states and 3587 transitions. [2020-10-05 22:53:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:42,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:53:42,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:42,895 INFO L225 Difference]: With dead ends: 1063 [2020-10-05 22:53:42,895 INFO L226 Difference]: Without dead ends: 598 [2020-10-05 22:53:42,895 INFO L675 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 [2020-10-05 22:53:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-05 22:53:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-05 22:53:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-05 22:53:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1914 transitions. [2020-10-05 22:53:42,917 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1914 transitions. Word has length 15 [2020-10-05 22:53:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:42,918 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 1914 transitions. [2020-10-05 22:53:42,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1914 transitions. [2020-10-05 22:53:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:53:42,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:42,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:42,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:53:42,921 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:42,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1363663410, now seen corresponding path program 1 times [2020-10-05 22:53:42,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:42,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005541656] [2020-10-05 22:53:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:42,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005541656] [2020-10-05 22:53:42,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:42,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:42,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957224389] [2020-10-05 22:53:42,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:42,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:42,974 INFO L87 Difference]: Start difference. First operand 598 states and 1914 transitions. Second operand 5 states. [2020-10-05 22:53:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,021 INFO L93 Difference]: Finished difference Result 712 states and 2245 transitions. [2020-10-05 22:53:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-05 22:53:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,025 INFO L225 Difference]: With dead ends: 712 [2020-10-05 22:53:43,025 INFO L226 Difference]: Without dead ends: 292 [2020-10-05 22:53:43,026 INFO L675 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 [2020-10-05 22:53:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-05 22:53:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-10-05 22:53:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-05 22:53:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-10-05 22:53:43,037 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-10-05 22:53:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,037 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-10-05 22:53:43,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-10-05 22:53:43,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:53:43,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:53:43,039 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,040 INFO L82 PathProgramCache]: Analyzing trace with hash -670734284, now seen corresponding path program 1 times [2020-10-05 22:53:43,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824115020] [2020-10-05 22:53:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824115020] [2020-10-05 22:53:43,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850256812] [2020-10-05 22:53:43,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,096 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 5 states. [2020-10-05 22:53:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,136 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-10-05 22:53:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-05 22:53:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,138 INFO L225 Difference]: With dead ends: 352 [2020-10-05 22:53:43,138 INFO L226 Difference]: Without dead ends: 154 [2020-10-05 22:53:43,139 INFO L675 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 [2020-10-05 22:53:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-05 22:53:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-05 22:53:43,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-05 22:53:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-05 22:53:43,145 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-05 22:53:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,145 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-05 22:53:43,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-05 22:53:43,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:53:43,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:43,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:43,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:53:43,147 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:43,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:43,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-10-05 22:53:43,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:43,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754508416] [2020-10-05 22:53:43,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:43,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754508416] [2020-10-05 22:53:43,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:43,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:43,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409430117] [2020-10-05 22:53:43,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:43,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:43,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:43,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:43,201 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-05 22:53:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:43,234 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-05 22:53:43,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:53:43,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:53:43,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:43,235 INFO L225 Difference]: With dead ends: 130 [2020-10-05 22:53:43,235 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:53:43,236 INFO L675 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 [2020-10-05 22:53:43,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:53:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:53:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:53:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:53:43,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-05 22:53:43,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:43,237 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:53:43,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:43,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:53:43,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:53:43,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:53:43,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:53:43 BasicIcfg [2020-10-05 22:53:43,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:53:43,244 INFO L168 Benchmark]: Toolchain (without parser) took 5358.60 ms. Allocated memory was 140.5 MB in the beginning and 285.2 MB in the end (delta: 144.7 MB). Free memory was 101.2 MB in the beginning and 139.6 MB in the end (delta: -38.4 MB). Peak memory consumption was 106.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,245 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.05 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 161.0 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,247 INFO L168 Benchmark]: Boogie Preprocessor took 29.27 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,248 INFO L168 Benchmark]: RCFGBuilder took 458.37 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 132.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,249 INFO L168 Benchmark]: TraceAbstraction took 4120.54 ms. Allocated memory was 203.9 MB in the beginning and 285.2 MB in the end (delta: 81.3 MB). Free memory was 132.1 MB in the beginning and 139.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 73.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:43,253 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 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.05 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 161.0 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.27 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.37 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 132.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4120.54 ms. Allocated memory was 203.9 MB in the beginning and 285.2 MB in the end (delta: 81.3 MB). Free memory was 132.1 MB in the beginning and 139.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 73.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 263 SDtfs, 280 SDslu, 349 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 4689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...