/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:11:34,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:11:34,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:11:34,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:11:34,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:11:34,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:11:34,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:11:34,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:11:34,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:11:34,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:11:34,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:11:34,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:11:34,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:11:34,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:11:34,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:11:34,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:11:34,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:11:34,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:11:34,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:11:34,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:11:34,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:11:34,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:11:34,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:11:34,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:11:34,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:11:34,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:11:34,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:11:34,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:11:34,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:11:34,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:11:34,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:11:34,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:11:34,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:11:34,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:11:34,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:11:34,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:11:34,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:11:34,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:11:34,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:11:34,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:11:34,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:11:34,780 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:11:34,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:11:34,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:11:34,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:11:34,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:11:34,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:11:34,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:11:34,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:11:34,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:11:34,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:11:34,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:11:34,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:11:34,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:11:34,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:11:34,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:11:34,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:11:34,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:11:34,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:11:34,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:11:34,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:11:34,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:11:34,786 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:11:35,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:11:35,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:11:35,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:11:35,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:11:35,076 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:11:35,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-06 01:11:35,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37246ced/5c8df9586b3346bc9a01943b3edd7209/FLAG6e128fc54 [2020-10-06 01:11:35,634 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:11:35,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-06 01:11:35,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37246ced/5c8df9586b3346bc9a01943b3edd7209/FLAG6e128fc54 [2020-10-06 01:11:35,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37246ced/5c8df9586b3346bc9a01943b3edd7209 [2020-10-06 01:11:35,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:11:35,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:11:35,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:35,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:11:35,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:11:35,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:35" (1/1) ... [2020-10-06 01:11:35,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6649cd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:35, skipping insertion in model container [2020-10-06 01:11:35,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:11:35" (1/1) ... [2020-10-06 01:11:35,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:11:36,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:11:36,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:36,471 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:11:36,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:11:36,597 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:11:36,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36 WrapperNode [2020-10-06 01:11:36,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:11:36,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:36,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:11:36,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:11:36,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:11:36,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:11:36,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:11:36,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:11:36,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (1/1) ... [2020-10-06 01:11:36,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:11:36,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:11:36,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:11:36,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:11:36,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (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 [2020-10-06 01:11:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:11:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:11:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:11:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:11:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:11:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:11:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:11:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:11:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:11:36,771 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:11:37,141 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:11:37,141 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:11:37,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:37 BoogieIcfgContainer [2020-10-06 01:11:37,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:11:37,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:11:37,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:11:37,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:11:37,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:11:35" (1/3) ... [2020-10-06 01:11:37,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d68f64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:37, skipping insertion in model container [2020-10-06 01:11:37,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:11:36" (2/3) ... [2020-10-06 01:11:37,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d68f64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:11:37, skipping insertion in model container [2020-10-06 01:11:37,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:11:37" (3/3) ... [2020-10-06 01:11:37,152 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-06 01:11:37,162 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:11:37,163 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:11:37,170 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:11:37,171 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:11:37,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,220 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,224 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,224 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:11:37,237 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:11:37,255 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:11:37,256 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:11:37,256 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:11:37,256 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:11:37,256 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:11:37,256 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:11:37,257 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:11:37,257 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:11:37,270 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:37,271 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:37,317 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:11:37,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:37,322 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:11:37,325 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:11:37,348 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:11:37,348 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:11:37,349 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:11:37,351 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:11:37,352 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:11:38,400 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-10-06 01:11:38,401 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-10-06 01:11:38,405 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-06 01:11:38,434 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-06 01:11:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-06 01:11:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:38,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:38,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:38,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:38,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:38,451 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-10-06 01:11:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:38,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285882284] [2020-10-06 01:11:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:38,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285882284] [2020-10-06 01:11:38,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:38,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:38,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1809677181] [2020-10-06 01:11:38,675 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:38,677 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:38,691 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:11:38,691 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:38,694 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:38,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:11:38,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:38,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:11:38,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:11:38,708 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-06 01:11:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:38,735 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-06 01:11:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:11:38,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-06 01:11:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:38,753 INFO L225 Difference]: With dead ends: 362 [2020-10-06 01:11:38,754 INFO L226 Difference]: Without dead ends: 298 [2020-10-06 01:11:38,755 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 [2020-10-06 01:11:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-06 01:11:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-06 01:11:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-06 01:11:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-06 01:11:38,830 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-06 01:11:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:38,831 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-06 01:11:38,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:11:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-06 01:11:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:38,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:38,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:38,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:11:38,833 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:38,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:38,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-10-06 01:11:38,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:38,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806202588] [2020-10-06 01:11:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:38,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806202588] [2020-10-06 01:11:38,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:38,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:38,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [664766174] [2020-10-06 01:11:38,937 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:38,938 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:38,940 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:11:38,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:38,941 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:38,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:38,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:38,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:38,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:38,943 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-06 01:11:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:38,961 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-06 01:11:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:38,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:11:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:38,964 INFO L225 Difference]: With dead ends: 217 [2020-10-06 01:11:38,964 INFO L226 Difference]: Without dead ends: 217 [2020-10-06 01:11:38,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-06 01:11:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-06 01:11:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-06 01:11:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-06 01:11:38,983 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-06 01:11:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:38,984 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-06 01:11:38,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-06 01:11:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:11:38,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:38,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:38,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:11:38,986 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-10-06 01:11:38,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:38,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239237583] [2020-10-06 01:11:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:39,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239237583] [2020-10-06 01:11:39,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:39,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:39,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [647149398] [2020-10-06 01:11:39,047 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:39,048 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:39,050 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-06 01:11:39,050 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:39,050 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:39,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:39,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:39,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:39,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:39,052 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-06 01:11:39,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:39,077 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-06 01:11:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:39,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:11:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:39,079 INFO L225 Difference]: With dead ends: 136 [2020-10-06 01:11:39,079 INFO L226 Difference]: Without dead ends: 136 [2020-10-06 01:11:39,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:39,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-06 01:11:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-06 01:11:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-06 01:11:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-06 01:11:39,088 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-06 01:11:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:39,089 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-06 01:11:39,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-06 01:11:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:11:39,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:39,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:39,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:11:39,091 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-10-06 01:11:39,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:39,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667979991] [2020-10-06 01:11:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:39,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667979991] [2020-10-06 01:11:39,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:39,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:39,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [21824419] [2020-10-06 01:11:39,169 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:39,172 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:39,178 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-10-06 01:11:39,178 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:39,297 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:39,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:39,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:39,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:39,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:39,298 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-06 01:11:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:39,323 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-06 01:11:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:11:39,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-06 01:11:39,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:39,324 INFO L225 Difference]: With dead ends: 109 [2020-10-06 01:11:39,325 INFO L226 Difference]: Without dead ends: 109 [2020-10-06 01:11:39,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-06 01:11:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-06 01:11:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-06 01:11:39,331 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-06 01:11:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:39,331 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-06 01:11:39,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-06 01:11:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:39,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:39,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:39,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:11:39,333 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:39,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:39,334 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-10-06 01:11:39,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:39,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664403397] [2020-10-06 01:11:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:39,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664403397] [2020-10-06 01:11:39,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:39,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:39,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [972383195] [2020-10-06 01:11:39,410 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:39,412 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:39,423 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-10-06 01:11:39,423 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:39,433 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:39,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:39,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:39,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:39,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:39,435 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-06 01:11:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:39,453 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-06 01:11:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:39,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:39,455 INFO L225 Difference]: With dead ends: 135 [2020-10-06 01:11:39,455 INFO L226 Difference]: Without dead ends: 85 [2020-10-06 01:11:39,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:39,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-06 01:11:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-06 01:11:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-06 01:11:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-06 01:11:39,460 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-06 01:11:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:39,460 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-06 01:11:39,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-06 01:11:39,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:39,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:39,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:39,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:11:39,462 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-10-06 01:11:39,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:39,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733884942] [2020-10-06 01:11:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:39,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733884942] [2020-10-06 01:11:39,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:39,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:39,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [280894349] [2020-10-06 01:11:39,515 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:39,517 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:39,528 INFO L258 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-10-06 01:11:39,528 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:39,536 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:39,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:39,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:39,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:39,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:39,537 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-06 01:11:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:39,554 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-06 01:11:39,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:39,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:39,555 INFO L225 Difference]: With dead ends: 99 [2020-10-06 01:11:39,555 INFO L226 Difference]: Without dead ends: 37 [2020-10-06 01:11:39,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-06 01:11:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-06 01:11:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-06 01:11:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-06 01:11:39,558 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-06 01:11:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:39,558 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-06 01:11:39,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-06 01:11:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:11:39,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:39,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:39,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:11:39,560 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:39,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:39,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-10-06 01:11:39,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:39,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448692459] [2020-10-06 01:11:39,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:39,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448692459] [2020-10-06 01:11:39,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:39,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:39,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [362993642] [2020-10-06 01:11:39,604 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:39,607 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:39,639 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-10-06 01:11:39,639 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:39,647 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:39,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:39,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:39,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:39,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:39,648 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-06 01:11:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:39,661 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-06 01:11:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:39,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-06 01:11:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:39,662 INFO L225 Difference]: With dead ends: 36 [2020-10-06 01:11:39,662 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:11:39,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:11:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:11:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:11:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:11:39,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-06 01:11:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:39,664 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:11:39,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:11:39,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:11:39,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:11:39,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:11:39 BasicIcfg [2020-10-06 01:11:39,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:11:39,672 INFO L168 Benchmark]: Toolchain (without parser) took 3691.88 ms. Allocated memory was 141.0 MB in the beginning and 245.9 MB in the end (delta: 104.9 MB). Free memory was 102.2 MB in the beginning and 205.2 MB in the end (delta: -103.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,673 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.56 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 158.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,676 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,676 INFO L168 Benchmark]: RCFGBuilder took 447.33 ms. Allocated memory is still 203.9 MB. Free memory was 155.4 MB in the beginning and 133.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:39,677 INFO L168 Benchmark]: TraceAbstraction took 2524.30 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 132.6 MB in the beginning and 205.2 MB in the end (delta: -72.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:11:39,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.56 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 158.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.82 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.99 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.33 ms. Allocated memory is still 203.9 MB. Free memory was 155.4 MB in the beginning and 133.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2524.30 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 132.6 MB in the beginning and 205.2 MB in the end (delta: -72.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 128 SDtfs, 66 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...