/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:07:21,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:07:21,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:07:21,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:07:21,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:07:21,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:07:21,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:07:21,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:07:21,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:07:21,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:07:21,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:07:21,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:07:21,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:07:21,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:07:21,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:07:21,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:07:21,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:07:21,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:07:21,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:07:21,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:07:21,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:07:21,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:07:21,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:07:21,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:07:21,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:07:21,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:07:21,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:07:21,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:07:21,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:07:21,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:07:21,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:07:21,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:07:21,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:07:21,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:07:21,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:07:21,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:07:21,866 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 [2020-10-11 15:07:21,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:07:21,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:07:21,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:07:21,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:07:21,903 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:07:21,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:07:21,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:07:21,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:07:21,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:07:21,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:07:21,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:07:21,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:07:21,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:07:21,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:07:21,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:07:21,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:07:21,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:07:21,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:07:21,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:07:21,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:07:21,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:07:21,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:07:21,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:07:21,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:07:21,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:07:21,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:07:21,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:07:21,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:07:21,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:07:21,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:07:22,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:07:22,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:07:22,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:07:22,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:07:22,202 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:07:22,203 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-10-11 15:07:22,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f9907a3/1b80060290874a11a21c44c833f5bff1/FLAGa6bdd370a [2020-10-11 15:07:22,731 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:07:22,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-10-11 15:07:22,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f9907a3/1b80060290874a11a21c44c833f5bff1/FLAGa6bdd370a [2020-10-11 15:07:23,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f9907a3/1b80060290874a11a21c44c833f5bff1 [2020-10-11 15:07:23,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:07:23,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:07:23,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:23,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:07:23,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:07:23,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b4d328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23, skipping insertion in model container [2020-10-11 15:07:23,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:07:23,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:07:23,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:23,573 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:07:23,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:07:23,684 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:07:23,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23 WrapperNode [2020-10-11 15:07:23,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:07:23,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:23,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:07:23,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:07:23,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:07:23,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:07:23,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:07:23,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:07:23,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (1/1) ... [2020-10-11 15:07:23,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:07:23,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:07:23,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:07:23,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:07:23,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (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 [2020-10-11 15:07:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:07:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:07:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:07:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:07:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:07:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:07:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:07:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:07:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:07:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:07:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:07:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:07:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:07:23,819 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:07:24,156 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:07:24,157 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:07:24,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:24 BoogieIcfgContainer [2020-10-11 15:07:24,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:07:24,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:07:24,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:07:24,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:07:24,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:07:23" (1/3) ... [2020-10-11 15:07:24,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616bb31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:24, skipping insertion in model container [2020-10-11 15:07:24,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:07:23" (2/3) ... [2020-10-11 15:07:24,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616bb31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:07:24, skipping insertion in model container [2020-10-11 15:07:24,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:07:24" (3/3) ... [2020-10-11 15:07:24,167 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2020-10-11 15:07:24,178 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:07:24,178 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:07:24,184 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:07:24,184 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:07:24,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,233 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,233 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:07:24,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:07:24,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:07:24,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:07:24,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:07:24,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:07:24,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:07:24,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:07:24,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:07:24,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:07:24,286 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:07:24,289 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,291 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,292 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:07:24,334 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:07:24,335 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:07:24,340 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:07:24,342 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:07:25,580 INFO L132 LiptonReduction]: Checked pairs total: 2334 [2020-10-11 15:07:25,580 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-11 15:07:25,587 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-11 15:07:25,616 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-11 15:07:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-11 15:07:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:07:25,626 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:25,627 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:25,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-11 15:07:25,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:25,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490089639] [2020-10-11 15:07:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:25,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490089639] [2020-10-11 15:07:25,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:25,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:25,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540613710] [2020-10-11 15:07:25,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:07:25,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:25,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:07:25,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:07:25,831 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-11 15:07:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:25,863 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-11 15:07:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:07:25,865 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-11 15:07:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:25,881 INFO L225 Difference]: With dead ends: 362 [2020-10-11 15:07:25,882 INFO L226 Difference]: Without dead ends: 298 [2020-10-11 15:07:25,883 INFO L673 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 [2020-10-11 15:07:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-11 15:07:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-11 15:07:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-11 15:07:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-11 15:07:25,957 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-11 15:07:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:25,959 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-11 15:07:25,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:07:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-11 15:07:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:07:25,960 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:25,961 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:25,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:07:25,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:25,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-11 15:07:25,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:25,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938674255] [2020-10-11 15:07:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938674255] [2020-10-11 15:07:26,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:07:26,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070415523] [2020-10-11 15:07:26,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,128 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-11 15:07:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,161 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-11 15:07:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:07:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,165 INFO L225 Difference]: With dead ends: 330 [2020-10-11 15:07:26,166 INFO L226 Difference]: Without dead ends: 266 [2020-10-11 15:07:26,167 INFO L673 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 [2020-10-11 15:07:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-11 15:07:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-11 15:07:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-11 15:07:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-11 15:07:26,190 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-11 15:07:26,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,191 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-11 15:07:26,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,191 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-11 15:07:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:07:26,193 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,193 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:07:26,194 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 1 times [2020-10-11 15:07:26,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278816376] [2020-10-11 15:07:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278816376] [2020-10-11 15:07:26,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91373673] [2020-10-11 15:07:26,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,272 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-11 15:07:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,335 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions. [2020-10-11 15:07:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:26,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-11 15:07:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,337 INFO L225 Difference]: With dead ends: 314 [2020-10-11 15:07:26,337 INFO L226 Difference]: Without dead ends: 170 [2020-10-11 15:07:26,338 INFO L673 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 [2020-10-11 15:07:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-11 15:07:26,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-11 15:07:26,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-11 15:07:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-10-11 15:07:26,349 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10 [2020-10-11 15:07:26,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,349 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-10-11 15:07:26,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-10-11 15:07:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:07:26,351 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,351 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:07:26,351 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 1 times [2020-10-11 15:07:26,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715081828] [2020-10-11 15:07:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715081828] [2020-10-11 15:07:26,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090565629] [2020-10-11 15:07:26,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,420 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-10-11 15:07:26,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,454 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions. [2020-10-11 15:07:26,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:07:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,456 INFO L225 Difference]: With dead ends: 183 [2020-10-11 15:07:26,457 INFO L226 Difference]: Without dead ends: 143 [2020-10-11 15:07:26,457 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-11 15:07:26,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-10-11 15:07:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-11 15:07:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions. [2020-10-11 15:07:26,472 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12 [2020-10-11 15:07:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,473 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions. [2020-10-11 15:07:26,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions. [2020-10-11 15:07:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:07:26,479 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,479 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:07:26,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 1 times [2020-10-11 15:07:26,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121117561] [2020-10-11 15:07:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121117561] [2020-10-11 15:07:26,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:26,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993793007] [2020-10-11 15:07:26,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,551 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 5 states. [2020-10-11 15:07:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,586 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions. [2020-10-11 15:07:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:07:26,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:07:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,587 INFO L225 Difference]: With dead ends: 129 [2020-10-11 15:07:26,587 INFO L226 Difference]: Without dead ends: 104 [2020-10-11 15:07:26,588 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-11 15:07:26,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-11 15:07:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-11 15:07:26,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions. [2020-10-11 15:07:26,592 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13 [2020-10-11 15:07:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,592 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions. [2020-10-11 15:07:26,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2020-10-11 15:07:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:07:26,593 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,594 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:07:26,594 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 1 times [2020-10-11 15:07:26,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026360299] [2020-10-11 15:07:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026360299] [2020-10-11 15:07:26,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 15:07:26,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701876707] [2020-10-11 15:07:26,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:07:26,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:07:26,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:07:26,658 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 6 states. [2020-10-11 15:07:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,702 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions. [2020-10-11 15:07:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:07:26,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-11 15:07:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,703 INFO L225 Difference]: With dead ends: 93 [2020-10-11 15:07:26,703 INFO L226 Difference]: Without dead ends: 85 [2020-10-11 15:07:26,703 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:26,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-11 15:07:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-11 15:07:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-11 15:07:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-11 15:07:26,707 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15 [2020-10-11 15:07:26,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,707 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-11 15:07:26,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:07:26,707 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-11 15:07:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:07:26,708 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,708 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:07:26,709 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,709 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 1 times [2020-10-11 15:07:26,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044980753] [2020-10-11 15:07:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044980753] [2020-10-11 15:07:26,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:07:26,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684987240] [2020-10-11 15:07:26,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:07:26,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:07:26,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:07:26,764 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-11 15:07:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,781 INFO L93 Difference]: Finished difference Result 117 states and 236 transitions. [2020-10-11 15:07:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:07:26,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-11 15:07:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,783 INFO L225 Difference]: With dead ends: 117 [2020-10-11 15:07:26,783 INFO L226 Difference]: Without dead ends: 55 [2020-10-11 15:07:26,783 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-11 15:07:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-11 15:07:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-11 15:07:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-11 15:07:26,786 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-11 15:07:26,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,786 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-11 15:07:26,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:07:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-11 15:07:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:07:26,787 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:07:26,787 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:07:26,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:07:26,788 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:07:26,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:07:26,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 2 times [2020-10-11 15:07:26,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:07:26,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334525706] [2020-10-11 15:07:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:07:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:07:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:07:26,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334525706] [2020-10-11 15:07:26,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:07:26,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:07:26,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395410219] [2020-10-11 15:07:26,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:07:26,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:07:26,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:07:26,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:07:26,881 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-11 15:07:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:07:26,910 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-11 15:07:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:07:26,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:07:26,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:07:26,911 INFO L225 Difference]: With dead ends: 54 [2020-10-11 15:07:26,911 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:07:26,912 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:07:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:07:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:07:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:07:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:07:26,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-11 15:07:26,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:07:26,913 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:07:26,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:07:26,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:07:26,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:07:26,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:07:26,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:07:26 BasicIcfg [2020-10-11 15:07:26,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:07:26,919 INFO L168 Benchmark]: Toolchain (without parser) took 3891.97 ms. Allocated memory was 253.2 MB in the beginning and 373.3 MB in the end (delta: 120.1 MB). Free memory was 208.6 MB in the beginning and 269.7 MB in the end (delta: -61.1 MB). Peak memory consumption was 59.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,920 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:07:26,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.79 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 273.7 MB in the end (delta: -65.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 320.9 MB. Free memory was 273.7 MB in the beginning and 271.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,923 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 ms. Allocated memory is still 320.9 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:07:26,923 INFO L168 Benchmark]: RCFGBuilder took 398.90 ms. Allocated memory is still 320.9 MB. Free memory was 271.2 MB in the beginning and 246.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,924 INFO L168 Benchmark]: TraceAbstraction took 2756.73 ms. Allocated memory was 320.9 MB in the beginning and 373.3 MB in the end (delta: 52.4 MB). Free memory was 246.8 MB in the beginning and 269.7 MB in the end (delta: -22.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:07:26,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 657.79 ms. Allocated memory was 253.2 MB in the beginning and 320.9 MB in the end (delta: 67.6 MB). Free memory was 208.6 MB in the beginning and 273.7 MB in the end (delta: -65.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 320.9 MB. Free memory was 273.7 MB in the beginning and 271.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.91 ms. Allocated memory is still 320.9 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 398.90 ms. Allocated memory is still 320.9 MB. Free memory was 271.2 MB in the beginning and 246.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2756.73 ms. Allocated memory was 320.9 MB in the beginning and 373.3 MB in the end (delta: 52.4 MB). Free memory was 246.8 MB in the beginning and 269.7 MB in the end (delta: -22.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 829 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 78 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2334 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 175 SDtfs, 173 SDslu, 270 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...