/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:29:12,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:29:12,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:29:12,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:29:12,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:29:12,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:29:12,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:29:12,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:29:12,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:29:12,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:29:12,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:29:12,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:29:12,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:29:12,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:29:12,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:29:12,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:29:12,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:29:12,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:29:12,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:29:12,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:29:12,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:29:12,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:29:12,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:29:12,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:29:12,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:29:12,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:29:12,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:29:12,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:29:12,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:29:12,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:29:12,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:29:12,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:29:12,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:29:12,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:29:12,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:29:12,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:29:12,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf [2019-12-27 22:29:13,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:29:13,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:29:13,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:29:13,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:29:13,013 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:29:13,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:29:13,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:29:13,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:29:13,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:29:13,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:29:13,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:29:13,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:29:13,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:29:13,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:29:13,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:29:13,016 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:29:13,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:29:13,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:29:13,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:29:13,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:29:13,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:29:13,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:29:13,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:29:13,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:29:13,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:29:13,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:29:13,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:29:13,018 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:29:13,018 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:29:13,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:29:13,019 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:29:13,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:29:13,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:29:13,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:29:13,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:29:13,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:29:13,316 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:29:13,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2019-12-27 22:29:13,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cb294b98/1412138e637d4a31aa645efe9c4637f6/FLAG1e83ff90b [2019-12-27 22:29:13,933 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:29:13,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2019-12-27 22:29:13,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cb294b98/1412138e637d4a31aa645efe9c4637f6/FLAG1e83ff90b [2019-12-27 22:29:14,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cb294b98/1412138e637d4a31aa645efe9c4637f6 [2019-12-27 22:29:14,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:29:14,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:29:14,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:29:14,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:29:14,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:29:14,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8b6dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14, skipping insertion in model container [2019-12-27 22:29:14,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:29:14,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:29:14,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:29:14,734 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:29:14,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:29:14,868 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:29:14,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14 WrapperNode [2019-12-27 22:29:14,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:29:14,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:29:14,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:29:14,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:29:14,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:29:14,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:29:14,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:29:14,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:29:14,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (1/1) ... [2019-12-27 22:29:14,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:29:14,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:29:14,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:29:14,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:29:14,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (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 [2019-12-27 22:29:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:29:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:29:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:29:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:29:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:29:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:29:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:29:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:29:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:29:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:29:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 22:29:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 22:29:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:29:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:29:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:29:15,022 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:29:15,399 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:29:15,400 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:29:15,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:29:15 BoogieIcfgContainer [2019-12-27 22:29:15,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:29:15,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:29:15,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:29:15,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:29:15,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:29:14" (1/3) ... [2019-12-27 22:29:15,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6fd39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:29:15, skipping insertion in model container [2019-12-27 22:29:15,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:29:14" (2/3) ... [2019-12-27 22:29:15,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6fd39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:29:15, skipping insertion in model container [2019-12-27 22:29:15,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:29:15" (3/3) ... [2019-12-27 22:29:15,410 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2019-12-27 22:29:15,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:29:15,421 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:29:15,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:29:15,429 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:29:15,460 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,460 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,460 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,461 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,461 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,462 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,462 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,462 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,463 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,463 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,463 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,464 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,464 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,464 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,465 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,465 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,465 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,465 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,466 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,466 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,466 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,467 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,467 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,467 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,472 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,489 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,489 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,490 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,491 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,496 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,497 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,497 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,497 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,503 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,503 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,505 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,505 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:29:15,518 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 22:29:15,535 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:29:15,535 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:29:15,535 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:29:15,535 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:29:15,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:29:15,536 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:29:15,536 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:29:15,536 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:29:15,549 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 63 transitions [2019-12-27 22:29:15,551 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 75 places, 63 transitions [2019-12-27 22:29:15,628 INFO L132 PetriNetUnfolder]: 1/59 cut-off events. [2019-12-27 22:29:15,628 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:29:15,638 INFO L76 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/57 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:29:15,641 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 75 places, 63 transitions [2019-12-27 22:29:15,662 INFO L132 PetriNetUnfolder]: 1/59 cut-off events. [2019-12-27 22:29:15,662 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:29:15,664 INFO L76 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs. 0/57 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 22:29:15,666 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-27 22:29:15,667 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:29:17,407 INFO L206 etLargeBlockEncoding]: Checked pairs total: 749 [2019-12-27 22:29:17,407 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2019-12-27 22:29:17,411 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 19 transitions [2019-12-27 22:29:17,424 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 94 states. [2019-12-27 22:29:17,426 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2019-12-27 22:29:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:29:17,434 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:17,435 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:17,435 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:17,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash 364087523, now seen corresponding path program 1 times [2019-12-27 22:29:17,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:17,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944051550] [2019-12-27 22:29:17,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:17,694 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944051550] [2019-12-27 22:29:17,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:17,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:29:17,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [493271272] [2019-12-27 22:29:17,699 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:17,705 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:17,736 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:29:17,737 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:17,742 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:17,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:29:17,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:17,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:29:17,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:17,758 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2019-12-27 22:29:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:17,790 INFO L93 Difference]: Finished difference Result 86 states and 212 transitions. [2019-12-27 22:29:17,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:29:17,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:29:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:17,822 INFO L225 Difference]: With dead ends: 86 [2019-12-27 22:29:17,822 INFO L226 Difference]: Without dead ends: 70 [2019-12-27 22:29:17,823 INFO L631 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 [2019-12-27 22:29:17,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-27 22:29:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-27 22:29:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-27 22:29:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-27 22:29:17,872 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-27 22:29:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:17,873 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-27 22:29:17,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:29:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-27 22:29:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:29:17,875 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:17,875 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:17,875 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:17,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:17,876 INFO L82 PathProgramCache]: Analyzing trace with hash -662886856, now seen corresponding path program 1 times [2019-12-27 22:29:17,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:17,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6507840] [2019-12-27 22:29:17,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:17,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6507840] [2019-12-27 22:29:17,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:17,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:29:17,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1017473058] [2019-12-27 22:29:17,982 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:17,983 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:17,987 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:29:17,987 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:18,048 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:29:18,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:29:18,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:18,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:29:18,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:29:18,051 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 5 states. [2019-12-27 22:29:18,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:18,110 INFO L93 Difference]: Finished difference Result 84 states and 183 transitions. [2019-12-27 22:29:18,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:29:18,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:29:18,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:18,115 INFO L225 Difference]: With dead ends: 84 [2019-12-27 22:29:18,115 INFO L226 Difference]: Without dead ends: 54 [2019-12-27 22:29:18,119 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:29:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-12-27 22:29:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-12-27 22:29:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-27 22:29:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 113 transitions. [2019-12-27 22:29:18,131 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 113 transitions. Word has length 11 [2019-12-27 22:29:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:18,134 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 113 transitions. [2019-12-27 22:29:18,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:29:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 113 transitions. [2019-12-27 22:29:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 22:29:18,135 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:18,135 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:18,135 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:18,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2027029566, now seen corresponding path program 1 times [2019-12-27 22:29:18,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:18,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803303829] [2019-12-27 22:29:18,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:18,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803303829] [2019-12-27 22:29:18,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:18,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:29:18,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1776615497] [2019-12-27 22:29:18,240 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:18,241 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:18,244 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 20 transitions. [2019-12-27 22:29:18,244 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:18,276 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 22:29:18,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 22:29:18,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:18,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 22:29:18,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:29:18,278 INFO L87 Difference]: Start difference. First operand 54 states and 113 transitions. Second operand 6 states. [2019-12-27 22:29:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:18,347 INFO L93 Difference]: Finished difference Result 70 states and 129 transitions. [2019-12-27 22:29:18,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 22:29:18,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-27 22:29:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:18,349 INFO L225 Difference]: With dead ends: 70 [2019-12-27 22:29:18,349 INFO L226 Difference]: Without dead ends: 46 [2019-12-27 22:29:18,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 22:29:18,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-27 22:29:18,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-12-27 22:29:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-27 22:29:18,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions. [2019-12-27 22:29:18,355 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 12 [2019-12-27 22:29:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:18,355 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions. [2019-12-27 22:29:18,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 22:29:18,356 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions. [2019-12-27 22:29:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 22:29:18,357 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:18,357 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:18,357 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:18,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1995753728, now seen corresponding path program 1 times [2019-12-27 22:29:18,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:18,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131609077] [2019-12-27 22:29:18,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:18,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131609077] [2019-12-27 22:29:18,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:18,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:29:18,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1513570977] [2019-12-27 22:29:18,399 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:18,400 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:18,402 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 12 transitions. [2019-12-27 22:29:18,402 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:18,403 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:18,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:29:18,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:18,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:29:18,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:18,404 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand 3 states. [2019-12-27 22:29:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:18,409 INFO L93 Difference]: Finished difference Result 42 states and 73 transitions. [2019-12-27 22:29:18,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:29:18,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 22:29:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:18,410 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:29:18,410 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:29:18,411 INFO L631 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 [2019-12-27 22:29:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:29:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:29:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:29:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 57 transitions. [2019-12-27 22:29:18,415 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 57 transitions. Word has length 12 [2019-12-27 22:29:18,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:18,415 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 57 transitions. [2019-12-27 22:29:18,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:29:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2019-12-27 22:29:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 22:29:18,416 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:18,416 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:18,417 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:18,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1621364820, now seen corresponding path program 1 times [2019-12-27 22:29:18,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:18,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429108245] [2019-12-27 22:29:18,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:18,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429108245] [2019-12-27 22:29:18,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:18,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:29:18,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1035108870] [2019-12-27 22:29:18,526 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:18,529 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:18,533 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 16 states and 17 transitions. [2019-12-27 22:29:18,533 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:18,566 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:29:18,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:29:18,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:29:18,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:29:18,570 INFO L87 Difference]: Start difference. First operand 34 states and 57 transitions. Second operand 5 states. [2019-12-27 22:29:18,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:18,597 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-12-27 22:29:18,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:29:18,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-27 22:29:18,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:18,599 INFO L225 Difference]: With dead ends: 41 [2019-12-27 22:29:18,599 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 22:29:18,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:29:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 22:29:18,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 22:29:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 22:29:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 22:29:18,605 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 13 [2019-12-27 22:29:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:18,605 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 22:29:18,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:29:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 22:29:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 22:29:18,606 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:18,606 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:18,607 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:18,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:18,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1930279037, now seen corresponding path program 1 times [2019-12-27 22:29:18,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:18,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151563060] [2019-12-27 22:29:18,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:29:18,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151563060] [2019-12-27 22:29:18,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:18,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:29:18,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1053758591] [2019-12-27 22:29:18,667 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:18,670 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:18,673 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 22:29:18,673 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:18,676 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:18,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:29:18,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:18,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:29:18,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:18,677 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 3 states. [2019-12-27 22:29:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:18,689 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-12-27 22:29:18,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:29:18,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-12-27 22:29:18,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:18,690 INFO L225 Difference]: With dead ends: 24 [2019-12-27 22:29:18,691 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:29:18,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:18,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:29:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:29:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:29:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:29:18,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-27 22:29:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:18,693 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:29:18,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:29:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:29:18,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:29:18,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:29:18 BasicIcfg [2019-12-27 22:29:18,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:29:18,700 INFO L168 Benchmark]: Toolchain (without parser) took 4468.91 ms. Allocated memory was 140.0 MB in the beginning and 245.4 MB in the end (delta: 105.4 MB). Free memory was 101.7 MB in the beginning and 188.4 MB in the end (delta: -86.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:18,701 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 22:29:18,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.35 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 161.7 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:18,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.90 ms. Allocated memory is still 205.0 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:18,703 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 205.0 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. [2019-12-27 22:29:18,704 INFO L168 Benchmark]: RCFGBuilder took 440.51 ms. Allocated memory is still 205.0 MB. Free memory was 157.9 MB in the beginning and 136.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:18,705 INFO L168 Benchmark]: TraceAbstraction took 3294.44 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 135.5 MB in the beginning and 188.4 MB in the end (delta: -52.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 22:29:18,709 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.35 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 161.7 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.90 ms. Allocated memory is still 205.0 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 205.0 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 440.51 ms. Allocated memory is still 205.0 MB. Free memory was 157.9 MB in the beginning and 136.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3294.44 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 135.5 MB in the beginning and 188.4 MB in the end (delta: -52.9 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: 1.8s, 75 ProgramPointsBefore, 27 ProgramPointsAfterwards, 63 TransitionsBefore, 19 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 361 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 749 CheckedPairsTotal, 49 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 5 procedures, 63 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 58 SDslu, 102 SDs, 0 SdLazy, 55 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1742 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...