/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/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:03:56,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:03:56,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:03:56,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:03:56,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:03:56,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:03:56,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:03:56,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:03:56,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:03:56,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:03:56,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:03:56,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:03:56,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:03:56,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:03:56,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:03:56,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:03:56,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:03:56,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:03:56,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:03:56,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:03:56,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:03:56,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:03:56,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:03:56,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:03:56,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:03:56,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:03:56,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:03:56,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:03:56,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:03:56,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:03:56,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:03:56,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:03:56,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:03:56,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:03:56,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:03:56,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:03:56,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:03:56,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:03:56,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:03:56,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:03:56,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:03:56,940 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:03:56,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:03:56,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:03:56,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:03:56,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:03:56,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:03:56,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:03:56,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:03:56,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:03:56,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:03:56,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:03:56,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:03:56,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:03:56,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:03:56,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:03:56,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:03:56,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:03:56,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:03:56,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:03:56,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:03:56,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:03:56,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:03:56,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:03:56,946 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:03:56,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:03:56,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:03:56,946 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:03:57,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:03:57,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:03:57,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:03:57,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:03:57,276 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:03:57,277 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-10-06 01:03:57,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c254697f2/ab44676f80e5460caa5c39a836727e9c/FLAGbafebb2dd [2020-10-06 01:03:57,783 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:03:57,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2020-10-06 01:03:57,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c254697f2/ab44676f80e5460caa5c39a836727e9c/FLAGbafebb2dd [2020-10-06 01:03:58,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c254697f2/ab44676f80e5460caa5c39a836727e9c [2020-10-06 01:03:58,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:03:58,149 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:03:58,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:03:58,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:03:58,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:03:58,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e1c5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58, skipping insertion in model container [2020-10-06 01:03:58,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:03:58,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:03:58,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:03:58,679 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:03:58,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:03:58,813 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:03:58,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58 WrapperNode [2020-10-06 01:03:58,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:03:58,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:03:58,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:03:58,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:03:58,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:03:58,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:03:58,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:03:58,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:03:58,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... [2020-10-06 01:03:58,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:03:58,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:03:58,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:03:58,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:03:58,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:03:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:03:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:03:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:03:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:03:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:03:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:03:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:03:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:03:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:03:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:03:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:03:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:03:58,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:03:58,980 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:03:59,390 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:03:59,390 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:03:59,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:03:59 BoogieIcfgContainer [2020-10-06 01:03:59,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:03:59,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:03:59,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:03:59,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:03:59,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:03:58" (1/3) ... [2020-10-06 01:03:59,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38db576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:03:59, skipping insertion in model container [2020-10-06 01:03:59,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:03:58" (2/3) ... [2020-10-06 01:03:59,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38db576a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:03:59, skipping insertion in model container [2020-10-06 01:03:59,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:03:59" (3/3) ... [2020-10-06 01:03:59,402 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2020-10-06 01:03:59,413 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:03:59,413 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:03:59,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:03:59,423 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:03:59,450 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,454 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:03:59,489 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:03:59,513 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:03:59,513 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:03:59,513 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:03:59,513 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:03:59,514 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:03:59,515 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:03:59,515 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:03:59,516 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:03:59,538 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-06 01:03:59,540 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:03:59,615 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:03:59,615 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:03:59,623 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:03:59,627 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:03:59,668 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:03:59,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:03:59,669 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:03:59,672 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:03:59,673 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:04:01,107 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-10-06 01:04:01,108 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-06 01:04:01,111 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-06 01:04:01,137 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-06 01:04:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-06 01:04:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:04:01,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:01,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:01,148 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:01,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-06 01:04:01,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:01,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480984883] [2020-10-06 01:04:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:01,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480984883] [2020-10-06 01:04:01,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:01,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:04:01,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1408761180] [2020-10-06 01:04:01,379 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:01,382 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:01,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:04:01,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:01,398 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:01,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:01,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:01,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:01,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,415 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-06 01:04:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:01,460 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-06 01:04:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:01,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:04:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:01,476 INFO L225 Difference]: With dead ends: 282 [2020-10-06 01:04:01,476 INFO L226 Difference]: Without dead ends: 218 [2020-10-06 01:04:01,477 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 01:04:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-06 01:04:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-06 01:04:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-06 01:04:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-06 01:04:01,542 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-06 01:04:01,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:01,543 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-06 01:04:01,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-06 01:04:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:04:01,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:01,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:01,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:04:01,546 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:01,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:01,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-06 01:04:01,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:01,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365144659] [2020-10-06 01:04:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:01,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365144659] [2020-10-06 01:04:01,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:01,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:01,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1016563051] [2020-10-06 01:04:01,614 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:01,615 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:01,618 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-06 01:04:01,618 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:01,634 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:01,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:01,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:01,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:01,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,637 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-06 01:04:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:01,655 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-06 01:04:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:01,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:04:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:01,658 INFO L225 Difference]: With dead ends: 202 [2020-10-06 01:04:01,658 INFO L226 Difference]: Without dead ends: 202 [2020-10-06 01:04:01,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-06 01:04:01,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-06 01:04:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-06 01:04:01,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-06 01:04:01,676 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-06 01:04:01,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:01,676 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-06 01:04:01,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-06 01:04:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:04:01,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:01,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:01,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:04:01,678 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:01,679 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-06 01:04:01,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:01,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369979282] [2020-10-06 01:04:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:01,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369979282] [2020-10-06 01:04:01,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:01,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:04:01,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [5449643] [2020-10-06 01:04:01,765 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:01,766 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:01,769 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-06 01:04:01,769 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:01,790 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:01,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:01,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:01,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:01,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,791 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-06 01:04:01,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:01,798 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-06 01:04:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:01,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 01:04:01,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:01,801 INFO L225 Difference]: With dead ends: 198 [2020-10-06 01:04:01,801 INFO L226 Difference]: Without dead ends: 198 [2020-10-06 01:04:01,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-06 01:04:01,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-06 01:04:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-06 01:04:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-06 01:04:01,815 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-06 01:04:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:01,816 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-06 01:04:01,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-06 01:04:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:04:01,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:01,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:01,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:04:01,818 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:01,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-06 01:04:01,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:01,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196486278] [2020-10-06 01:04:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:01,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196486278] [2020-10-06 01:04:01,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:01,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:04:01,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109404018] [2020-10-06 01:04:01,861 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:01,862 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:01,865 INFO L258 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2020-10-06 01:04:01,865 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:01,950 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:01,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:01,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:01,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,951 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-06 01:04:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:01,957 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-06 01:04:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:01,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 01:04:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:01,959 INFO L225 Difference]: With dead ends: 192 [2020-10-06 01:04:01,959 INFO L226 Difference]: Without dead ends: 192 [2020-10-06 01:04:01,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-06 01:04:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-06 01:04:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-06 01:04:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-06 01:04:01,970 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-06 01:04:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:01,973 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-06 01:04:01,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:01,973 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-06 01:04:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:04:01,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:01,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:01,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:04:01,979 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:01,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-06 01:04:01,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:01,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217837944] [2020-10-06 01:04:01,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:02,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217837944] [2020-10-06 01:04:02,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:02,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:02,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1642992492] [2020-10-06 01:04:02,094 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:02,096 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:02,100 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-10-06 01:04:02,100 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:02,127 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,154 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,182 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,222 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,243 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,275 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,295 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:02,307 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:02,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:02,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:02,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:02,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:02,308 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-06 01:04:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:02,341 INFO L93 Difference]: Finished difference Result 170 states and 448 transitions. [2020-10-06 01:04:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:02,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:04:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:02,342 INFO L225 Difference]: With dead ends: 170 [2020-10-06 01:04:02,342 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:04:02,343 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 01:04:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:04:02,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:04:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:04:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:04:02,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-06 01:04:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:02,344 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:04:02,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:04:02,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:04:02,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:04:02,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:04:02 BasicIcfg [2020-10-06 01:04:02,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:04:02,351 INFO L168 Benchmark]: Toolchain (without parser) took 4201.24 ms. Allocated memory was 147.8 MB in the beginning and 245.4 MB in the end (delta: 97.5 MB). Free memory was 102.7 MB in the beginning and 189.6 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,352 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.34 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 161.3 MB in the end (delta: -58.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.22 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,355 INFO L168 Benchmark]: Boogie Preprocessor took 27.03 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,355 INFO L168 Benchmark]: RCFGBuilder took 502.66 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 135.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:02,356 INFO L168 Benchmark]: TraceAbstraction took 2954.19 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 135.3 MB in the beginning and 189.6 MB in the end (delta: -54.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:04:02,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.34 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 161.3 MB in the end (delta: -58.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.22 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.03 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.66 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 135.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2954.19 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 135.3 MB in the beginning and 189.6 MB in the end (delta: -54.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 91 SDtfs, 29 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...