/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:16:44,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:16:44,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:16:44,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:16:44,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:16:44,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:16:44,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:16:44,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:16:44,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:16:44,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:16:44,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:16:44,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:16:44,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:16:44,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:16:44,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:16:44,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:16:44,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:16:44,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:16:44,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:16:44,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:16:44,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:16:44,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:16:44,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:16:44,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:16:44,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:16:44,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:16:44,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:16:44,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:16:44,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:16:44,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:16:44,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:16:44,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:16:44,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:16:44,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:16:44,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:16:44,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:16:44,979 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-SP.epf [2020-10-22 02:16:45,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:16:45,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:16:45,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:16:45,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:16:45,017 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:16:45,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:16:45,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:16:45,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:16:45,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:16:45,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:16:45,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:16:45,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:16:45,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:16:45,020 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:16:45,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:16:45,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:16:45,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:16:45,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:16:45,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:16:45,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:16:45,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:16:45,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:16:45,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:16:45,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:16:45,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:16:45,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:16:45,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:16:45,023 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:16:45,024 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:16:45,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:16:45,024 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:16:45,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:16:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:16:45,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:16:45,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:16:45,377 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:16:45,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-22 02:16:45,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cbd6094/b36d4d8586d646439e90ce1846b2fa9a/FLAGd6e708be2 [2020-10-22 02:16:46,037 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:16:46,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2020-10-22 02:16:46,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cbd6094/b36d4d8586d646439e90ce1846b2fa9a/FLAGd6e708be2 [2020-10-22 02:16:46,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cbd6094/b36d4d8586d646439e90ce1846b2fa9a [2020-10-22 02:16:46,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:16:46,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:16:46,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:16:46,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:16:46,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:16:46,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:16:46" (1/1) ... [2020-10-22 02:16:46,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffdc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:46, skipping insertion in model container [2020-10-22 02:16:46,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:16:46" (1/1) ... [2020-10-22 02:16:46,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:16:46,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:16:46,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:16:46,877 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:16:46,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:16:47,054 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:16:47,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47 WrapperNode [2020-10-22 02:16:47,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:16:47,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:16:47,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:16:47,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:16:47,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:16:47,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:16:47,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:16:47,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:16:47,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (1/1) ... [2020-10-22 02:16:47,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:16:47,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:16:47,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:16:47,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:16:47,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (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 [2020-10-22 02:16:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:16:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:16:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:16:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:16:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:16:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:16:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:16:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:16:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:16:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:16:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:16:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:16:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:16:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:16:47,218 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:16:47,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:16:47,582 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:16:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:16:47 BoogieIcfgContainer [2020-10-22 02:16:47,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:16:47,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:16:47,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:16:47,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:16:47,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:16:46" (1/3) ... [2020-10-22 02:16:47,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a86ab34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:16:47, skipping insertion in model container [2020-10-22 02:16:47,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:47" (2/3) ... [2020-10-22 02:16:47,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a86ab34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:16:47, skipping insertion in model container [2020-10-22 02:16:47,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:16:47" (3/3) ... [2020-10-22 02:16:47,608 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2020-10-22 02:16:47,620 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:16:47,620 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:16:47,627 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:16:47,628 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:16:47,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,686 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:47,693 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:16:47,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:16:47,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:16:47,730 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:16:47,730 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:16:47,731 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:16:47,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:16:47,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:16:47,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:16:47,731 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:16:47,746 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:16:47,747 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:16:47,750 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:16:47,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-22 02:16:47,809 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-22 02:16:47,810 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:16:47,817 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-22 02:16:47,823 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-22 02:16:49,013 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-22 02:16:49,409 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-22 02:16:49,754 INFO L131 LiptonReduction]: Checked pairs total: 3056 [2020-10-22 02:16:49,754 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 02:16:49,761 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-10-22 02:16:49,783 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-22 02:16:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-22 02:16:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:16:49,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:49,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:49,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:49,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:49,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1972841711, now seen corresponding path program 1 times [2020-10-22 02:16:49,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:49,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540932108] [2020-10-22 02:16:49,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:50,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540932108] [2020-10-22 02:16:50,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:50,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:16:50,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1812044125] [2020-10-22 02:16:50,028 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:50,031 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:50,042 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:16:50,042 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:50,046 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:50,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:50,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:50,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:50,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,065 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-22 02:16:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:50,117 INFO L93 Difference]: Finished difference Result 220 states and 612 transitions. [2020-10-22 02:16:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:50,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:16:50,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:50,133 INFO L225 Difference]: With dead ends: 220 [2020-10-22 02:16:50,133 INFO L226 Difference]: Without dead ends: 172 [2020-10-22 02:16:50,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-22 02:16:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-22 02:16:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-22 02:16:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 460 transitions. [2020-10-22 02:16:50,194 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 460 transitions. Word has length 8 [2020-10-22 02:16:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:50,196 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 460 transitions. [2020-10-22 02:16:50,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 460 transitions. [2020-10-22 02:16:50,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:16:50,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:50,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:50,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:16:50,199 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:50,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:50,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1028549814, now seen corresponding path program 1 times [2020-10-22 02:16:50,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:50,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803139033] [2020-10-22 02:16:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:50,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803139033] [2020-10-22 02:16:50,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:50,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:16:50,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1603194882] [2020-10-22 02:16:50,345 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:50,346 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:50,348 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-22 02:16:50,349 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:50,422 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:50,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:50,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:50,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:50,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,425 INFO L87 Difference]: Start difference. First operand 172 states and 460 transitions. Second operand 3 states. [2020-10-22 02:16:50,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:50,433 INFO L93 Difference]: Finished difference Result 163 states and 430 transitions. [2020-10-22 02:16:50,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:50,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:16:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:50,437 INFO L225 Difference]: With dead ends: 163 [2020-10-22 02:16:50,437 INFO L226 Difference]: Without dead ends: 163 [2020-10-22 02:16:50,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-22 02:16:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-22 02:16:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-22 02:16:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 430 transitions. [2020-10-22 02:16:50,459 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 430 transitions. Word has length 9 [2020-10-22 02:16:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:50,460 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 430 transitions. [2020-10-22 02:16:50,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 430 transitions. [2020-10-22 02:16:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:16:50,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:50,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:50,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:16:50,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:50,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1819291053, now seen corresponding path program 1 times [2020-10-22 02:16:50,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:50,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903581631] [2020-10-22 02:16:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:50,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903581631] [2020-10-22 02:16:50,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:50,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:50,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1068554801] [2020-10-22 02:16:50,522 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:50,523 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:50,524 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-10-22 02:16:50,525 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:50,528 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:50,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:50,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:50,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:50,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,529 INFO L87 Difference]: Start difference. First operand 163 states and 430 transitions. Second operand 3 states. [2020-10-22 02:16:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:50,544 INFO L93 Difference]: Finished difference Result 211 states and 528 transitions. [2020-10-22 02:16:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:50,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:16:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:50,547 INFO L225 Difference]: With dead ends: 211 [2020-10-22 02:16:50,547 INFO L226 Difference]: Without dead ends: 175 [2020-10-22 02:16:50,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-22 02:16:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-10-22 02:16:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-22 02:16:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 393 transitions. [2020-10-22 02:16:50,565 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 393 transitions. Word has length 10 [2020-10-22 02:16:50,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:50,565 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 393 transitions. [2020-10-22 02:16:50,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 393 transitions. [2020-10-22 02:16:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:16:50,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:50,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:50,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:16:50,568 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:50,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1819353363, now seen corresponding path program 1 times [2020-10-22 02:16:50,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:50,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114202107] [2020-10-22 02:16:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:50,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114202107] [2020-10-22 02:16:50,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:50,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:50,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [679827429] [2020-10-22 02:16:50,653 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:50,654 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:50,656 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 27 transitions. [2020-10-22 02:16:50,657 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:50,756 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:50,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:50,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:50,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:50,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:50,757 INFO L87 Difference]: Start difference. First operand 157 states and 393 transitions. Second operand 4 states. [2020-10-22 02:16:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:50,781 INFO L93 Difference]: Finished difference Result 196 states and 467 transitions. [2020-10-22 02:16:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:50,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-22 02:16:50,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:50,783 INFO L225 Difference]: With dead ends: 196 [2020-10-22 02:16:50,783 INFO L226 Difference]: Without dead ends: 124 [2020-10-22 02:16:50,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-22 02:16:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-22 02:16:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-22 02:16:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 291 transitions. [2020-10-22 02:16:50,795 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 291 transitions. Word has length 10 [2020-10-22 02:16:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:50,796 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 291 transitions. [2020-10-22 02:16:50,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 291 transitions. [2020-10-22 02:16:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:16:50,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:50,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:50,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:16:50,798 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:50,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:50,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1404816041, now seen corresponding path program 1 times [2020-10-22 02:16:50,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:50,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325604935] [2020-10-22 02:16:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:50,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325604935] [2020-10-22 02:16:50,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:50,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:50,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [600949413] [2020-10-22 02:16:50,881 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:50,882 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:50,885 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-10-22 02:16:50,886 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:50,907 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:50,985 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:51,008 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:51,117 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2580#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 02:16:51,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:16:51,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:51,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:16:51,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:51,118 INFO L87 Difference]: Start difference. First operand 124 states and 291 transitions. Second operand 5 states. [2020-10-22 02:16:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:51,176 INFO L93 Difference]: Finished difference Result 120 states and 257 transitions. [2020-10-22 02:16:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:16:51,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-22 02:16:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:51,177 INFO L225 Difference]: With dead ends: 120 [2020-10-22 02:16:51,177 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 02:16:51,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:16:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 02:16:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-22 02:16:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-22 02:16:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 164 transitions. [2020-10-22 02:16:51,184 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 164 transitions. Word has length 11 [2020-10-22 02:16:51,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:51,184 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 164 transitions. [2020-10-22 02:16:51,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:16:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 164 transitions. [2020-10-22 02:16:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:16:51,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:51,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:51,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:16:51,187 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:51,187 INFO L82 PathProgramCache]: Analyzing trace with hash 489181955, now seen corresponding path program 1 times [2020-10-22 02:16:51,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:51,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371544465] [2020-10-22 02:16:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:51,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:51,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371544465] [2020-10-22 02:16:51,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:51,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:16:51,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1918558087] [2020-10-22 02:16:51,274 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:51,275 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:51,280 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 62 transitions. [2020-10-22 02:16:51,280 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:51,290 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:51,424 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [2880#(not (= ~__unbuffered_cnt~0 2)), 2881#(not (= ~__unbuffered_cnt~0 1)), 2882#(<= ~__unbuffered_cnt~0 0), 2879#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 02:16:51,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:16:51,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:51,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:16:51,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:16:51,425 INFO L87 Difference]: Start difference. First operand 84 states and 164 transitions. Second operand 10 states. [2020-10-22 02:16:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:51,489 INFO L93 Difference]: Finished difference Result 80 states and 154 transitions. [2020-10-22 02:16:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:16:51,490 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-22 02:16:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:51,491 INFO L225 Difference]: With dead ends: 80 [2020-10-22 02:16:51,491 INFO L226 Difference]: Without dead ends: 33 [2020-10-22 02:16:51,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-22 02:16:51,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-22 02:16:51,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-22 02:16:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-22 02:16:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-22 02:16:51,494 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-10-22 02:16:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:51,495 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-22 02:16:51,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:16:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-22 02:16:51,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:16:51,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:51,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:51,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:16:51,497 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:51,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1917932335, now seen corresponding path program 1 times [2020-10-22 02:16:51,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:51,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668028772] [2020-10-22 02:16:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:51,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668028772] [2020-10-22 02:16:51,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:51,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:16:51,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1917521538] [2020-10-22 02:16:51,543 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:51,545 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:51,554 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 84 transitions. [2020-10-22 02:16:51,554 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:51,653 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:51,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:51,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:51,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:51,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:51,654 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-22 02:16:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:51,666 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-22 02:16:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:51,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-22 02:16:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:51,667 INFO L225 Difference]: With dead ends: 32 [2020-10-22 02:16:51,667 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:16:51,668 INFO L677 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 [2020-10-22 02:16:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:16:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:16:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:16:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:16:51,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-22 02:16:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:51,669 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:16:51,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:51,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:16:51,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:16:51,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:16:51,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:16:51 BasicIcfg [2020-10-22 02:16:51,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:16:51,675 INFO L168 Benchmark]: Toolchain (without parser) took 5354.98 ms. Allocated memory was 140.0 MB in the beginning and 286.3 MB in the end (delta: 146.3 MB). Free memory was 102.1 MB in the beginning and 215.7 MB in the end (delta: -113.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,676 INFO L168 Benchmark]: CDTParser took 3.05 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.06 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 101.3 MB in the beginning and 154.7 MB in the end (delta: -53.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,678 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 200.8 MB. Free memory was 152.7 MB in the beginning and 151.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,679 INFO L168 Benchmark]: RCFGBuilder took 448.25 ms. Allocated memory is still 200.8 MB. Free memory was 150.6 MB in the beginning and 127.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:51,680 INFO L168 Benchmark]: TraceAbstraction took 4084.68 ms. Allocated memory was 200.8 MB in the beginning and 286.3 MB in the end (delta: 85.5 MB). Free memory was 126.4 MB in the beginning and 215.7 MB in the end (delta: -89.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:16:51,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.05 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.06 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 101.3 MB in the beginning and 154.7 MB in the end (delta: -53.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.35 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 200.8 MB. Free memory was 152.7 MB in the beginning and 151.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.25 ms. Allocated memory is still 200.8 MB. Free memory was 150.6 MB in the beginning and 127.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4084.68 ms. Allocated memory was 200.8 MB in the beginning and 286.3 MB in the end (delta: 85.5 MB). Free memory was 126.4 MB in the beginning and 215.7 MB in the end (delta: -89.2 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 741 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 47 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3056 MoverChecksTotal - PositiveResult [Line: 17]: 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 117 SDtfs, 109 SDslu, 137 SDs, 0 SdLazy, 89 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2165 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...