/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:58:49,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:58:49,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:58:49,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:58:49,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:58:49,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:58:49,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:58:49,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:58:49,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:58:49,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:58:49,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:58:49,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:58:49,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:58:49,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:58:49,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:58:49,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:58:49,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:58:49,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:58:49,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:58:49,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:58:49,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:58:49,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:58:49,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:58:49,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:58:49,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:58:49,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:58:49,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:58:49,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:58:49,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:58:49,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:58:49,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:58:49,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:58:49,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:58:49,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:58:49,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:58:49,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:58:49,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:58:49,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:58:49,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:58:49,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:58:49,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:58:49,935 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:58:49,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:58:49,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:58:49,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:58:49,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:58:49,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:58:49,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:58:49,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:58:49,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:58:49,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:58:49,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:58:49,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:58:49,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:58:49,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:58:49,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:58:49,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:58:49,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:58:49,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:58:49,940 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:58:49,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:58:49,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:58:49,940 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:58:50,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:58:50,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:58:50,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:58:50,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:58:50,250 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:58:50,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_rmo.opt.i [2020-10-06 00:58:50,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7521c11f/f695e59830a14f80b7783157c4a879b4/FLAG1fa39ed4c [2020-10-06 00:58:50,806 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:58:50,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_rmo.opt.i [2020-10-06 00:58:50,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7521c11f/f695e59830a14f80b7783157c4a879b4/FLAG1fa39ed4c [2020-10-06 00:58:51,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7521c11f/f695e59830a14f80b7783157c4a879b4 [2020-10-06 00:58:51,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:58:51,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:58:51,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:58:51,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:58:51,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:58:51,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc2befc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51, skipping insertion in model container [2020-10-06 00:58:51,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:58:51,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:58:51,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:58:51,717 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:58:51,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:58:51,881 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:58:51,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51 WrapperNode [2020-10-06 00:58:51,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:58:51,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:58:51,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:58:51,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:58:51,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:58:51,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:58:51,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:58:51,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:58:51,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... [2020-10-06 00:58:51,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:58:51,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:58:51,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:58:51,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:58:51,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:58:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:58:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:58:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:58:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:58:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:58:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:58:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:58:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:58:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:58:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:58:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:58:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:58:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:58:52,076 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:58:54,085 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:58:54,086 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:58:54,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:58:54 BoogieIcfgContainer [2020-10-06 00:58:54,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:58:54,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:58:54,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:58:54,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:58:54,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:58:51" (1/3) ... [2020-10-06 00:58:54,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307707c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:58:54, skipping insertion in model container [2020-10-06 00:58:54,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:58:51" (2/3) ... [2020-10-06 00:58:54,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307707c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:58:54, skipping insertion in model container [2020-10-06 00:58:54,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:58:54" (3/3) ... [2020-10-06 00:58:54,096 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_rmo.opt.i [2020-10-06 00:58:54,107 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:58:54,107 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:58:54,115 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:58:54,116 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:58:54,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,147 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,147 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,162 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,162 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,162 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,162 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,162 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:58:54,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:58:54,215 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:58:54,215 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:58:54,216 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:58:54,216 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:58:54,216 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:58:54,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:58:54,217 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:58:54,217 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:58:54,237 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 199 flow [2020-10-06 00:58:54,239 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-06 00:58:54,299 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 00:58:54,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:58:54,304 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-06 00:58:54,310 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-06 00:58:54,349 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 00:58:54,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:58:54,350 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-06 00:58:54,354 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1642 [2020-10-06 00:58:54,356 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:58:55,724 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2020-10-06 00:58:55,765 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 2, 1] term [2020-10-06 00:58:55,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:58:55,769 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-06 00:58:55,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:58:56,940 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2020-10-06 00:58:57,900 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-06 00:58:58,043 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-06 00:58:58,716 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-06 00:58:59,060 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-06 00:59:00,284 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-06 00:59:00,562 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-06 00:59:01,770 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 130 [2020-10-06 00:59:02,046 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-06 00:59:02,476 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-06 00:59:02,800 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-06 00:59:03,033 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-06 00:59:03,139 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-06 00:59:03,167 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4410 [2020-10-06 00:59:03,167 INFO L214 etLargeBlockEncoding]: Total number of compositions: 75 [2020-10-06 00:59:03,170 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 26 transitions, 67 flow [2020-10-06 00:59:03,217 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 822 states. [2020-10-06 00:59:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states. [2020-10-06 00:59:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-06 00:59:03,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:03,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-06 00:59:03,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:03,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:03,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1000627320, now seen corresponding path program 1 times [2020-10-06 00:59:03,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:03,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663649134] [2020-10-06 00:59:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:03,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663649134] [2020-10-06 00:59:03,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:03,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:59:03,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473795738] [2020-10-06 00:59:03,459 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:03,461 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:03,474 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-06 00:59:03,474 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:03,478 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:03,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:03,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:03,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:03,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:03,496 INFO L87 Difference]: Start difference. First operand 822 states. Second operand 3 states. [2020-10-06 00:59:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:03,589 INFO L93 Difference]: Finished difference Result 687 states and 2150 transitions. [2020-10-06 00:59:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:03,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-06 00:59:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:03,613 INFO L225 Difference]: With dead ends: 687 [2020-10-06 00:59:03,614 INFO L226 Difference]: Without dead ends: 562 [2020-10-06 00:59:03,615 INFO L675 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 [2020-10-06 00:59:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-10-06 00:59:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-10-06 00:59:03,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-06 00:59:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1725 transitions. [2020-10-06 00:59:03,730 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1725 transitions. Word has length 5 [2020-10-06 00:59:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:03,730 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 1725 transitions. [2020-10-06 00:59:03,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1725 transitions. [2020-10-06 00:59:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:59:03,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:03,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:03,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:59:03,733 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:03,733 INFO L82 PathProgramCache]: Analyzing trace with hash -486051602, now seen corresponding path program 1 times [2020-10-06 00:59:03,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:03,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415425933] [2020-10-06 00:59:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:03,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415425933] [2020-10-06 00:59:03,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:03,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:59:03,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [744859628] [2020-10-06 00:59:03,834 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:03,835 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:03,837 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:59:03,837 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:03,838 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:03,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:03,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:03,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:03,840 INFO L87 Difference]: Start difference. First operand 562 states and 1725 transitions. Second operand 3 states. [2020-10-06 00:59:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:03,882 INFO L93 Difference]: Finished difference Result 552 states and 1687 transitions. [2020-10-06 00:59:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:03,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:59:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:03,889 INFO L225 Difference]: With dead ends: 552 [2020-10-06 00:59:03,890 INFO L226 Difference]: Without dead ends: 552 [2020-10-06 00:59:03,891 INFO L675 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 [2020-10-06 00:59:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-06 00:59:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2020-10-06 00:59:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-06 00:59:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1687 transitions. [2020-10-06 00:59:03,929 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1687 transitions. Word has length 9 [2020-10-06 00:59:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:03,931 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 1687 transitions. [2020-10-06 00:59:03,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1687 transitions. [2020-10-06 00:59:03,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:59:03,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:03,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:03,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:59:03,938 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:03,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2146239772, now seen corresponding path program 1 times [2020-10-06 00:59:03,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:03,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166306731] [2020-10-06 00:59:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:04,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166306731] [2020-10-06 00:59:04,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:04,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:59:04,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [428976043] [2020-10-06 00:59:04,072 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:04,076 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:04,079 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-10-06 00:59:04,080 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:04,141 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:04,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:04,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:04,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:04,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:04,142 INFO L87 Difference]: Start difference. First operand 552 states and 1687 transitions. Second operand 3 states. [2020-10-06 00:59:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:04,166 INFO L93 Difference]: Finished difference Result 542 states and 1649 transitions. [2020-10-06 00:59:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:04,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 00:59:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:04,179 INFO L225 Difference]: With dead ends: 542 [2020-10-06 00:59:04,180 INFO L226 Difference]: Without dead ends: 542 [2020-10-06 00:59:04,180 INFO L675 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 [2020-10-06 00:59:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-06 00:59:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-10-06 00:59:04,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-06 00:59:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1649 transitions. [2020-10-06 00:59:04,208 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1649 transitions. Word has length 10 [2020-10-06 00:59:04,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:04,209 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 1649 transitions. [2020-10-06 00:59:04,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1649 transitions. [2020-10-06 00:59:04,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:59:04,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:04,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:04,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:59:04,219 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:04,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:04,219 INFO L82 PathProgramCache]: Analyzing trace with hash 2094870650, now seen corresponding path program 1 times [2020-10-06 00:59:04,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:04,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958470822] [2020-10-06 00:59:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:04,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958470822] [2020-10-06 00:59:04,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:04,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:04,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1249612741] [2020-10-06 00:59:04,286 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:04,288 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:04,291 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-06 00:59:04,291 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:04,309 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:04,365 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:04,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:04,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:04,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:04,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:04,366 INFO L87 Difference]: Start difference. First operand 542 states and 1649 transitions. Second operand 4 states. [2020-10-06 00:59:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:04,435 INFO L93 Difference]: Finished difference Result 521 states and 1575 transitions. [2020-10-06 00:59:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:04,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 00:59:04,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:04,440 INFO L225 Difference]: With dead ends: 521 [2020-10-06 00:59:04,440 INFO L226 Difference]: Without dead ends: 521 [2020-10-06 00:59:04,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:04,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-10-06 00:59:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2020-10-06 00:59:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-10-06 00:59:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 1575 transitions. [2020-10-06 00:59:04,458 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 1575 transitions. Word has length 11 [2020-10-06 00:59:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:04,459 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 1575 transitions. [2020-10-06 00:59:04,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 1575 transitions. [2020-10-06 00:59:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:59:04,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:04,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:04,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:59:04,460 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:04,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1669512842, now seen corresponding path program 1 times [2020-10-06 00:59:04,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:04,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569643491] [2020-10-06 00:59:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:04,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569643491] [2020-10-06 00:59:04,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:04,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:59:04,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1440874225] [2020-10-06 00:59:04,539 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:04,541 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:04,549 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 49 transitions. [2020-10-06 00:59:04,549 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:04,574 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:04,587 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:04,592 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:04,599 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:04,659 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:04,748 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8423#(and (<= ~y~0 0) (= 0 ~x$w_buff1~0))] [2020-10-06 00:59:04,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 00:59:04,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:04,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 00:59:04,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:59:04,749 INFO L87 Difference]: Start difference. First operand 521 states and 1575 transitions. Second operand 6 states. [2020-10-06 00:59:04,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:04,909 INFO L93 Difference]: Finished difference Result 797 states and 2374 transitions. [2020-10-06 00:59:04,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 00:59:04,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-06 00:59:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:04,914 INFO L225 Difference]: With dead ends: 797 [2020-10-06 00:59:04,914 INFO L226 Difference]: Without dead ends: 449 [2020-10-06 00:59:04,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:59:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-10-06 00:59:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2020-10-06 00:59:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-10-06 00:59:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 1335 transitions. [2020-10-06 00:59:04,994 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 1335 transitions. Word has length 12 [2020-10-06 00:59:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:04,994 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 1335 transitions. [2020-10-06 00:59:04,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 00:59:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 1335 transitions. [2020-10-06 00:59:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:59:04,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:04,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:04,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:59:04,996 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:04,996 INFO L82 PathProgramCache]: Analyzing trace with hash 522745330, now seen corresponding path program 2 times [2020-10-06 00:59:04,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:04,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811954451] [2020-10-06 00:59:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:05,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811954451] [2020-10-06 00:59:05,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:05,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:59:05,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [449078801] [2020-10-06 00:59:05,039 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:05,040 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:05,045 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-10-06 00:59:05,045 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:05,098 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:05,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:59:05,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:05,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:59:05,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:05,099 INFO L87 Difference]: Start difference. First operand 449 states and 1335 transitions. Second operand 3 states. [2020-10-06 00:59:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:05,108 INFO L93 Difference]: Finished difference Result 437 states and 1294 transitions. [2020-10-06 00:59:05,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:59:05,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 00:59:05,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:05,113 INFO L225 Difference]: With dead ends: 437 [2020-10-06 00:59:05,113 INFO L226 Difference]: Without dead ends: 437 [2020-10-06 00:59:05,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:59:05,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-06 00:59:05,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-10-06 00:59:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-10-06 00:59:05,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 1294 transitions. [2020-10-06 00:59:05,127 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 1294 transitions. Word has length 12 [2020-10-06 00:59:05,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:05,128 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 1294 transitions. [2020-10-06 00:59:05,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:59:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 1294 transitions. [2020-10-06 00:59:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:59:05,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:05,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:05,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:59:05,129 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:05,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1628574476, now seen corresponding path program 1 times [2020-10-06 00:59:05,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:05,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486541182] [2020-10-06 00:59:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:05,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486541182] [2020-10-06 00:59:05,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:05,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:05,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1820815955] [2020-10-06 00:59:05,180 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:05,182 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:05,185 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:59:05,185 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:05,194 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,201 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,202 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,208 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,229 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,255 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,260 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,264 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,267 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,282 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:05,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:05,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:05,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:05,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:05,283 INFO L87 Difference]: Start difference. First operand 437 states and 1294 transitions. Second operand 4 states. [2020-10-06 00:59:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:05,355 INFO L93 Difference]: Finished difference Result 425 states and 1253 transitions. [2020-10-06 00:59:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:05,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 00:59:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:05,360 INFO L225 Difference]: With dead ends: 425 [2020-10-06 00:59:05,360 INFO L226 Difference]: Without dead ends: 425 [2020-10-06 00:59:05,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-10-06 00:59:05,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2020-10-06 00:59:05,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-06 00:59:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 1253 transitions. [2020-10-06 00:59:05,374 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 1253 transitions. Word has length 12 [2020-10-06 00:59:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:05,374 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 1253 transitions. [2020-10-06 00:59:05,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 1253 transitions. [2020-10-06 00:59:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:59:05,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:05,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:05,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 00:59:05,376 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:05,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:05,376 INFO L82 PathProgramCache]: Analyzing trace with hash -974763969, now seen corresponding path program 1 times [2020-10-06 00:59:05,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:05,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723285391] [2020-10-06 00:59:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:05,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723285391] [2020-10-06 00:59:05,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:05,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:59:05,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1459580870] [2020-10-06 00:59:05,424 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:05,426 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:05,432 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 47 transitions. [2020-10-06 00:59:05,432 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:05,477 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:05,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:05,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:05,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:05,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:05,478 INFO L87 Difference]: Start difference. First operand 425 states and 1253 transitions. Second operand 4 states. [2020-10-06 00:59:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:05,511 INFO L93 Difference]: Finished difference Result 800 states and 2259 transitions. [2020-10-06 00:59:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:59:05,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 00:59:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:05,515 INFO L225 Difference]: With dead ends: 800 [2020-10-06 00:59:05,515 INFO L226 Difference]: Without dead ends: 353 [2020-10-06 00:59:05,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:05,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-06 00:59:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 317. [2020-10-06 00:59:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-06 00:59:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 863 transitions. [2020-10-06 00:59:05,526 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 863 transitions. Word has length 13 [2020-10-06 00:59:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:05,527 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 863 transitions. [2020-10-06 00:59:05,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 863 transitions. [2020-10-06 00:59:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:59:05,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:05,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:05,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 00:59:05,528 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:05,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:05,529 INFO L82 PathProgramCache]: Analyzing trace with hash -549142010, now seen corresponding path program 1 times [2020-10-06 00:59:05,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:05,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114694687] [2020-10-06 00:59:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:05,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114694687] [2020-10-06 00:59:05,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:05,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:59:05,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [73735360] [2020-10-06 00:59:05,572 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:05,574 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:05,578 INFO L258 McrAutomatonBuilder]: Finished intersection with 29 states and 46 transitions. [2020-10-06 00:59:05,579 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:05,676 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:05,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:05,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:05,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:05,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:05,677 INFO L87 Difference]: Start difference. First operand 317 states and 863 transitions. Second operand 4 states. [2020-10-06 00:59:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:05,699 INFO L93 Difference]: Finished difference Result 449 states and 1221 transitions. [2020-10-06 00:59:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:05,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 00:59:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:05,702 INFO L225 Difference]: With dead ends: 449 [2020-10-06 00:59:05,702 INFO L226 Difference]: Without dead ends: 209 [2020-10-06 00:59:05,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-06 00:59:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-10-06 00:59:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-06 00:59:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 563 transitions. [2020-10-06 00:59:05,710 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 563 transitions. Word has length 13 [2020-10-06 00:59:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:05,710 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 563 transitions. [2020-10-06 00:59:05,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 563 transitions. [2020-10-06 00:59:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 00:59:05,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:05,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:05,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 00:59:05,712 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:05,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1878298136, now seen corresponding path program 1 times [2020-10-06 00:59:05,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:05,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647692812] [2020-10-06 00:59:05,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:05,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647692812] [2020-10-06 00:59:05,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:05,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:59:05,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1043321609] [2020-10-06 00:59:05,818 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:05,820 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:05,825 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 40 transitions. [2020-10-06 00:59:05,825 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:05,832 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:59:05,833 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,833 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:59:05,833 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,834 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,837 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,837 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,840 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,848 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:59:05,849 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,849 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,855 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:05,861 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:05,866 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,871 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,874 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,877 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,898 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:59:05,899 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,899 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:59:05,900 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,900 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,906 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,908 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,908 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,913 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:59:05,914 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,914 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,919 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:05,925 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:05,929 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,935 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,938 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,941 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,979 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:59:05,979 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,980 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:59:05,980 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,981 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,985 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:05,989 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,992 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:05,996 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:05,997 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:06,001 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,019 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:59:06,020 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,020 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:59:06,021 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,021 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:06,027 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,028 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,029 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,033 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:59:06,034 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,034 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,039 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:06,044 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:59:06,049 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 00:59:06,053 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,056 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,059 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:59:06,083 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:06,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:59:06,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:06,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:59:06,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:06,084 INFO L87 Difference]: Start difference. First operand 209 states and 563 transitions. Second operand 5 states. [2020-10-06 00:59:06,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:06,186 INFO L93 Difference]: Finished difference Result 208 states and 559 transitions. [2020-10-06 00:59:06,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:59:06,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 00:59:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:06,189 INFO L225 Difference]: With dead ends: 208 [2020-10-06 00:59:06,189 INFO L226 Difference]: Without dead ends: 208 [2020-10-06 00:59:06,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:59:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-06 00:59:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-06 00:59:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-06 00:59:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 559 transitions. [2020-10-06 00:59:06,195 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 559 transitions. Word has length 14 [2020-10-06 00:59:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:06,196 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 559 transitions. [2020-10-06 00:59:06,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:59:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 559 transitions. [2020-10-06 00:59:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 00:59:06,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:59:06,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:59:06,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 00:59:06,197 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:59:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:59:06,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1610345253, now seen corresponding path program 1 times [2020-10-06 00:59:06,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:59:06,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931350119] [2020-10-06 00:59:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:59:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:59:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:59:06,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931350119] [2020-10-06 00:59:06,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:59:06,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:59:06,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [373566410] [2020-10-06 00:59:06,273 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:59:06,275 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:59:06,282 INFO L258 McrAutomatonBuilder]: Finished intersection with 37 states and 60 transitions. [2020-10-06 00:59:06,282 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:59:06,324 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,331 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,339 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,345 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,351 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,357 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,370 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,376 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,399 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:59:06,410 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:59:06,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:59:06,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:59:06,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:59:06,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:59:06,411 INFO L87 Difference]: Start difference. First operand 208 states and 559 transitions. Second operand 4 states. [2020-10-06 00:59:06,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:59:06,436 INFO L93 Difference]: Finished difference Result 120 states and 291 transitions. [2020-10-06 00:59:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:59:06,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-06 00:59:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:59:06,437 INFO L225 Difference]: With dead ends: 120 [2020-10-06 00:59:06,437 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:59:06,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:59:06,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:59:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:59:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:59:06,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:59:06,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-06 00:59:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:59:06,439 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:59:06,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:59:06,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:59:06,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:59:06,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 00:59:06,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:59:06 BasicIcfg [2020-10-06 00:59:06,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:59:06,445 INFO L168 Benchmark]: Toolchain (without parser) took 15331.06 ms. Allocated memory was 140.0 MB in the beginning and 401.1 MB in the end (delta: 261.1 MB). Free memory was 101.5 MB in the beginning and 295.3 MB in the end (delta: -193.8 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,446 INFO L168 Benchmark]: CDTParser took 0.17 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. [2020-10-06 00:59:06,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.36 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 158.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 154.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,448 INFO L168 Benchmark]: Boogie Preprocessor took 39.69 ms. Allocated memory is still 203.4 MB. Free memory was 154.8 MB in the beginning and 152.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,449 INFO L168 Benchmark]: RCFGBuilder took 2092.31 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 152.2 MB in the beginning and 166.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,450 INFO L168 Benchmark]: TraceAbstraction took 12353.83 ms. Allocated memory was 248.0 MB in the beginning and 401.1 MB in the end (delta: 153.1 MB). Free memory was 165.1 MB in the beginning and 295.3 MB in the end (delta: -130.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-06 00:59:06,453 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 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 767.36 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 158.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 154.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.69 ms. Allocated memory is still 203.4 MB. Free memory was 154.8 MB in the beginning and 152.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2092.31 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 152.2 MB in the beginning and 166.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 104.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12353.83 ms. Allocated memory was 248.0 MB in the beginning and 401.1 MB in the end (delta: 153.1 MB). Free memory was 165.1 MB in the beginning and 295.3 MB in the end (delta: -130.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 8.9s, 100 ProgramPointsBefore, 36 ProgramPointsAfterwards, 92 TransitionsBefore, 26 TransitionsAfterwards, 1642 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 810 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4410 CheckedPairsTotal, 75 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.9s, HoareTripleCheckerStatistics: 224 SDtfs, 170 SDslu, 266 SDs, 0 SdLazy, 192 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=822occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 6746 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...