/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:37:29,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:37:29,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:37:29,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:37:29,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:37:29,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:37:29,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:37:29,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:37:29,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:37:29,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:37:29,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:37:29,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:37:29,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:37:29,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:37:29,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:37:29,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:37:29,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:37:29,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:37:29,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:37:29,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:37:29,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:37:29,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:37:29,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:37:29,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:37:29,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:37:29,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:37:29,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:37:29,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:37:29,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:37:29,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:37:29,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:37:29,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:37:29,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:37:29,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:37:29,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:37:29,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:37:29,976 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-NoLbe-MCR.epf [2019-12-28 05:37:30,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:37:30,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:37:30,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:37:30,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:37:30,016 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:37:30,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:37:30,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:37:30,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:37:30,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:37:30,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:37:30,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:37:30,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:37:30,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:37:30,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:37:30,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:37:30,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:37:30,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:37:30,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:37:30,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:37:30,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:37:30,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:37:30,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:37:30,024 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:37:30,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:37:30,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:37:30,026 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:37:30,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:37:30,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:37:30,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:37:30,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:37:30,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:37:30,339 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:37:30,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-28 05:37:30,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1efc7bb4/a38b62b3d1994053aded52c95e569c77/FLAG4d6b56075 [2019-12-28 05:37:30,941 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:37:30,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-28 05:37:30,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1efc7bb4/a38b62b3d1994053aded52c95e569c77/FLAG4d6b56075 [2019-12-28 05:37:31,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1efc7bb4/a38b62b3d1994053aded52c95e569c77 [2019-12-28 05:37:31,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:37:31,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:37:31,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:37:31,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:37:31,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:37:31,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:31,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65075e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31, skipping insertion in model container [2019-12-28 05:37:31,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:31,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:37:31,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:37:31,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:37:31,823 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:37:31,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:37:31,988 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:37:31,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31 WrapperNode [2019-12-28 05:37:31,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:37:31,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:37:31,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:37:31,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:37:32,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:37:32,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:37:32,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:37:32,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:37:32,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (1/1) ... [2019-12-28 05:37:32,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:37:32,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:37:32,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:37:32,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:37:32,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (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 [2019-12-28 05:37:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:37:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:37:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-12-28 05:37:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-12-28 05:37:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:37:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:37:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:37:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:37:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:37:32,169 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:37:32,481 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:37:32,482 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-28 05:37:32,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:37:32 BoogieIcfgContainer [2019-12-28 05:37:32,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:37:32,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:37:32,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:37:32,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:37:32,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:37:31" (1/3) ... [2019-12-28 05:37:32,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ec8e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:37:32, skipping insertion in model container [2019-12-28 05:37:32,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:37:31" (2/3) ... [2019-12-28 05:37:32,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ec8e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:37:32, skipping insertion in model container [2019-12-28 05:37:32,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:37:32" (3/3) ... [2019-12-28 05:37:32,508 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2019-12-28 05:37:32,519 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:37:32,519 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:37:32,527 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:37:32,529 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:37:32,561 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,561 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,562 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,562 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,563 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,563 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,564 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,564 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,564 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,564 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,565 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,565 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,565 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,566 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,569 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,570 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,570 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,571 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,571 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,571 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,571 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,571 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,588 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-28 05:37:32,612 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:37:32,612 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:37:32,613 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:37:32,613 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:37:32,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:37:32,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:37:32,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:37:32,614 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:37:32,623 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 43 transitions [2019-12-28 05:37:32,644 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 193 states. [2019-12-28 05:37:32,647 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2019-12-28 05:37:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 05:37:32,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:32,658 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:32,659 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:32,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash -500488566, now seen corresponding path program 1 times [2019-12-28 05:37:32,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:32,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572842514] [2019-12-28 05:37:32,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:32,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:37:32,868 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:37:32,869 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:37:32,869 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-28 05:37:32,879 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,879 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,880 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,880 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,880 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,881 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,881 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,881 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,881 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,881 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,882 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,882 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,882 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,882 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,882 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,883 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,884 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,884 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,884 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,884 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,885 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,885 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,885 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,886 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,886 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,886 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,886 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,886 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,887 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,887 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,887 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,894 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,895 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,895 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,895 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,895 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,895 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,896 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,896 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:32,898 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:37:32,899 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:37:32,899 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:37:32,899 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:37:32,899 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:37:32,899 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:37:32,899 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:37:32,899 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:37:32,899 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:37:32,902 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 56 transitions [2019-12-28 05:37:33,028 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2197 states. [2019-12-28 05:37:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states. [2019-12-28 05:37:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 05:37:33,031 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:33,031 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:33,032 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:33,032 INFO L82 PathProgramCache]: Analyzing trace with hash -716138185, now seen corresponding path program 1 times [2019-12-28 05:37:33,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:33,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303586438] [2019-12-28 05:37:33,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:33,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303586438] [2019-12-28 05:37:33,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:37:33,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:37:33,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1542509596] [2019-12-28 05:37:33,339 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:33,348 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:33,384 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 27 states and 26 transitions. [2019-12-28 05:37:33,384 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:33,389 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:37:33,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:37:33,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:33,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:37:33,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:37:33,410 INFO L87 Difference]: Start difference. First operand 2197 states. Second operand 7 states. [2019-12-28 05:37:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:33,661 INFO L93 Difference]: Finished difference Result 2213 states and 5823 transitions. [2019-12-28 05:37:33,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 05:37:33,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-12-28 05:37:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:33,703 INFO L225 Difference]: With dead ends: 2213 [2019-12-28 05:37:33,703 INFO L226 Difference]: Without dead ends: 1907 [2019-12-28 05:37:33,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:37:33,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2019-12-28 05:37:33,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1811. [2019-12-28 05:37:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2019-12-28 05:37:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 4805 transitions. [2019-12-28 05:37:33,880 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 4805 transitions. Word has length 26 [2019-12-28 05:37:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:33,881 INFO L462 AbstractCegarLoop]: Abstraction has 1811 states and 4805 transitions. [2019-12-28 05:37:33,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:37:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 4805 transitions. [2019-12-28 05:37:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:37:33,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:33,892 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:33,892 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1725382090, now seen corresponding path program 1 times [2019-12-28 05:37:33,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:33,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845282443] [2019-12-28 05:37:33,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:33,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:37:33,970 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:37:33,972 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:37:33,972 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-28 05:37:33,985 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,985 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,986 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,986 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,986 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,986 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,986 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,987 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,987 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,987 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,989 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,989 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,990 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,990 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,990 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,990 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,991 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,991 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,991 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,991 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,991 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,992 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,992 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,992 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,992 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,992 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,993 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,993 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,994 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,994 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,994 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,995 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,995 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,996 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,996 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,997 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,997 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,997 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,999 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:33,999 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,001 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,001 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,006 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,007 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,007 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,009 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,009 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,009 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,010 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,010 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,013 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,013 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,013 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,013 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,013 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,014 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:34,016 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:37:34,016 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:37:34,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:37:34,017 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:37:34,017 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:37:34,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:37:34,017 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:37:34,017 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:37:34,017 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:37:34,024 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions [2019-12-28 05:37:36,225 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26245 states. [2019-12-28 05:37:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 26245 states. [2019-12-28 05:37:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 05:37:36,226 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:36,226 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:36,226 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:36,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:36,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1525827647, now seen corresponding path program 1 times [2019-12-28 05:37:36,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:36,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019310753] [2019-12-28 05:37:36,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:36,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019310753] [2019-12-28 05:37:36,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:37:36,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:37:36,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1700597272] [2019-12-28 05:37:36,347 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:36,350 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:36,353 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 27 states and 26 transitions. [2019-12-28 05:37:36,353 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:36,354 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:37:36,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:37:36,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:36,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:37:36,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:37:36,355 INFO L87 Difference]: Start difference. First operand 26245 states. Second operand 7 states. [2019-12-28 05:37:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:37,522 INFO L93 Difference]: Finished difference Result 30164 states and 106666 transitions. [2019-12-28 05:37:37,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 05:37:37,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-12-28 05:37:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:37,710 INFO L225 Difference]: With dead ends: 30164 [2019-12-28 05:37:37,711 INFO L226 Difference]: Without dead ends: 28826 [2019-12-28 05:37:37,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:37:37,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28826 states. [2019-12-28 05:37:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28826 to 25574. [2019-12-28 05:37:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25574 states. [2019-12-28 05:37:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25574 states to 25574 states and 91343 transitions. [2019-12-28 05:37:38,949 INFO L78 Accepts]: Start accepts. Automaton has 25574 states and 91343 transitions. Word has length 26 [2019-12-28 05:37:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:38,950 INFO L462 AbstractCegarLoop]: Abstraction has 25574 states and 91343 transitions. [2019-12-28 05:37:38,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:37:38,950 INFO L276 IsEmpty]: Start isEmpty. Operand 25574 states and 91343 transitions. [2019-12-28 05:37:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:37:38,951 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:38,952 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:38,952 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:38,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:38,952 INFO L82 PathProgramCache]: Analyzing trace with hash -342198604, now seen corresponding path program 1 times [2019-12-28 05:37:38,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:38,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406999577] [2019-12-28 05:37:38,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-28 05:37:39,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406999577] [2019-12-28 05:37:39,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:37:39,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:37:39,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [265268486] [2019-12-28 05:37:39,062 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:39,066 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:39,074 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 34 states and 33 transitions. [2019-12-28 05:37:39,074 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:39,074 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:37:39,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:37:39,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:39,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:37:39,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:37:39,076 INFO L87 Difference]: Start difference. First operand 25574 states and 91343 transitions. Second operand 7 states. [2019-12-28 05:37:40,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:40,365 INFO L93 Difference]: Finished difference Result 30309 states and 106246 transitions. [2019-12-28 05:37:40,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 05:37:40,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-28 05:37:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:40,488 INFO L225 Difference]: With dead ends: 30309 [2019-12-28 05:37:40,488 INFO L226 Difference]: Without dead ends: 29679 [2019-12-28 05:37:40,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:37:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29679 states. [2019-12-28 05:37:41,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29679 to 26139. [2019-12-28 05:37:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26139 states. [2019-12-28 05:37:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26139 states to 26139 states and 92531 transitions. [2019-12-28 05:37:41,496 INFO L78 Accepts]: Start accepts. Automaton has 26139 states and 92531 transitions. Word has length 33 [2019-12-28 05:37:41,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:41,496 INFO L462 AbstractCegarLoop]: Abstraction has 26139 states and 92531 transitions. [2019-12-28 05:37:41,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:37:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 26139 states and 92531 transitions. [2019-12-28 05:37:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:37:41,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:41,505 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:41,505 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:41,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:41,505 INFO L82 PathProgramCache]: Analyzing trace with hash 228922057, now seen corresponding path program 1 times [2019-12-28 05:37:41,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:41,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617686526] [2019-12-28 05:37:41,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:41,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617686526] [2019-12-28 05:37:41,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022239693] [2019-12-28 05:37:41,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:37:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:41,796 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-28 05:37:41,800 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-28 05:37:41,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-28 05:37:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:41,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-28 05:37:41,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-12-28 05:37:41,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2116881669] [2019-12-28 05:37:41,952 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:41,959 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:41,970 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 101 states and 160 transitions. [2019-12-28 05:37:41,970 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:42,044 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 11 times. [2019-12-28 05:37:42,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-28 05:37:42,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:42,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-28 05:37:42,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2019-12-28 05:37:42,045 INFO L87 Difference]: Start difference. First operand 26139 states and 92531 transitions. Second operand 12 states. [2019-12-28 05:37:43,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:43,149 INFO L93 Difference]: Finished difference Result 36351 states and 126951 transitions. [2019-12-28 05:37:43,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-28 05:37:43,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2019-12-28 05:37:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:43,308 INFO L225 Difference]: With dead ends: 36351 [2019-12-28 05:37:43,309 INFO L226 Difference]: Without dead ends: 34875 [2019-12-28 05:37:43,310 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=272, Invalid=988, Unknown=0, NotChecked=0, Total=1260 [2019-12-28 05:37:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34875 states. [2019-12-28 05:37:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34875 to 21648. [2019-12-28 05:37:45,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21648 states. [2019-12-28 05:37:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21648 states to 21648 states and 76580 transitions. [2019-12-28 05:37:45,332 INFO L78 Accepts]: Start accepts. Automaton has 21648 states and 76580 transitions. Word has length 40 [2019-12-28 05:37:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:45,332 INFO L462 AbstractCegarLoop]: Abstraction has 21648 states and 76580 transitions. [2019-12-28 05:37:45,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-28 05:37:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 21648 states and 76580 transitions. [2019-12-28 05:37:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:37:45,336 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:45,336 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:45,539 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:37:45,540 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:45,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:45,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1426081419, now seen corresponding path program 1 times [2019-12-28 05:37:45,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:45,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316838169] [2019-12-28 05:37:45,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:45,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316838169] [2019-12-28 05:37:45,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347128062] [2019-12-28 05:37:45,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:37:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:45,747 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-28 05:37:45,756 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-28 05:37:45,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-28 05:37:45,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:37:45,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-28 05:37:45,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2019-12-28 05:37:45,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1112021638] [2019-12-28 05:37:45,866 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:45,870 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:45,875 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 57 states and 72 transitions. [2019-12-28 05:37:45,875 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:45,877 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 3 times. [2019-12-28 05:37:45,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-28 05:37:45,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:45,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-28 05:37:45,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-12-28 05:37:45,878 INFO L87 Difference]: Start difference. First operand 21648 states and 76580 transitions. Second operand 9 states. [2019-12-28 05:37:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:46,313 INFO L93 Difference]: Finished difference Result 30819 states and 107867 transitions. [2019-12-28 05:37:46,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-28 05:37:46,314 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2019-12-28 05:37:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:46,402 INFO L225 Difference]: With dead ends: 30819 [2019-12-28 05:37:46,403 INFO L226 Difference]: Without dead ends: 30111 [2019-12-28 05:37:46,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2019-12-28 05:37:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30111 states. [2019-12-28 05:37:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30111 to 23181. [2019-12-28 05:37:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23181 states. [2019-12-28 05:37:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23181 states to 23181 states and 81911 transitions. [2019-12-28 05:37:47,259 INFO L78 Accepts]: Start accepts. Automaton has 23181 states and 81911 transitions. Word has length 40 [2019-12-28 05:37:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:47,259 INFO L462 AbstractCegarLoop]: Abstraction has 23181 states and 81911 transitions. [2019-12-28 05:37:47,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-28 05:37:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 23181 states and 81911 transitions. [2019-12-28 05:37:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:37:47,263 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:47,263 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:47,466 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:37:47,467 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:47,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1578309869, now seen corresponding path program 2 times [2019-12-28 05:37:47,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:47,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328066914] [2019-12-28 05:37:47,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-28 05:37:47,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328066914] [2019-12-28 05:37:47,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:37:47,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-28 05:37:47,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [955149129] [2019-12-28 05:37:47,599 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:47,603 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:47,608 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 59 states and 76 transitions. [2019-12-28 05:37:47,609 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:47,653 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-28 05:37:47,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-28 05:37:47,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:47,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-28 05:37:47,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:37:47,654 INFO L87 Difference]: Start difference. First operand 23181 states and 81911 transitions. Second operand 12 states. [2019-12-28 05:37:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:48,277 INFO L93 Difference]: Finished difference Result 27309 states and 95400 transitions. [2019-12-28 05:37:48,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-12-28 05:37:48,278 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2019-12-28 05:37:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:48,336 INFO L225 Difference]: With dead ends: 27309 [2019-12-28 05:37:48,336 INFO L226 Difference]: Without dead ends: 25569 [2019-12-28 05:37:48,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2019-12-28 05:37:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25569 states. [2019-12-28 05:37:49,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25569 to 17697. [2019-12-28 05:37:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17697 states. [2019-12-28 05:37:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17697 states to 17697 states and 62603 transitions. [2019-12-28 05:37:49,086 INFO L78 Accepts]: Start accepts. Automaton has 17697 states and 62603 transitions. Word has length 40 [2019-12-28 05:37:49,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:49,086 INFO L462 AbstractCegarLoop]: Abstraction has 17697 states and 62603 transitions. [2019-12-28 05:37:49,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-28 05:37:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17697 states and 62603 transitions. [2019-12-28 05:37:49,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:37:49,088 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:49,088 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:49,089 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:49,089 INFO L82 PathProgramCache]: Analyzing trace with hash -733704694, now seen corresponding path program 1 times [2019-12-28 05:37:49,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:49,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740243489] [2019-12-28 05:37:49,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:37:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-28 05:37:49,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740243489] [2019-12-28 05:37:49,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:37:49,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:37:49,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2006922693] [2019-12-28 05:37:49,167 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:37:49,170 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:37:49,174 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 40 transitions. [2019-12-28 05:37:49,174 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:37:49,175 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:37:49,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:37:49,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:37:49,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:37:49,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:37:49,176 INFO L87 Difference]: Start difference. First operand 17697 states and 62603 transitions. Second operand 7 states. [2019-12-28 05:37:49,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:37:49,384 INFO L93 Difference]: Finished difference Result 21947 states and 75754 transitions. [2019-12-28 05:37:49,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 05:37:49,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:37:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:37:49,423 INFO L225 Difference]: With dead ends: 21947 [2019-12-28 05:37:49,424 INFO L226 Difference]: Without dead ends: 20741 [2019-12-28 05:37:49,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:37:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20741 states. [2019-12-28 05:37:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20741 to 17513. [2019-12-28 05:37:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17513 states. [2019-12-28 05:37:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17513 states to 17513 states and 60906 transitions. [2019-12-28 05:37:49,955 INFO L78 Accepts]: Start accepts. Automaton has 17513 states and 60906 transitions. Word has length 40 [2019-12-28 05:37:49,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:37:49,956 INFO L462 AbstractCegarLoop]: Abstraction has 17513 states and 60906 transitions. [2019-12-28 05:37:49,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:37:49,956 INFO L276 IsEmpty]: Start isEmpty. Operand 17513 states and 60906 transitions. [2019-12-28 05:37:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:37:49,958 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:37:49,958 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:37:49,958 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:37:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:37:49,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1288507625, now seen corresponding path program 1 times [2019-12-28 05:37:49,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:37:49,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619311295] [2019-12-28 05:37:49,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:37:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:37:49,986 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:37:49,986 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:37:49,987 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:37:49,987 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-28 05:37:49,994 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,995 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,996 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,997 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:49,999 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,001 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,002 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,003 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,003 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,003 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,003 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,003 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,004 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,004 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,004 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,004 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,004 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,005 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,005 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,006 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,006 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,007 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,009 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,009 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,009 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,009 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,009 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,010 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,010 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,010 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,011 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,012 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:37:50,014 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-28 05:37:50,014 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:37:50,014 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:37:50,014 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:37:50,014 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:37:50,014 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:37:50,015 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:37:50,015 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:37:50,015 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:37:50,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 82 transitions Received shutdown request... [2019-12-28 05:41:54,428 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-28 05:41:54,432 WARN L227 ceAbstractionStarter]: Timeout [2019-12-28 05:41:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:41:54 BasicIcfg [2019-12-28 05:41:54,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:41:54,435 INFO L168 Benchmark]: Toolchain (without parser) took 263214.08 ms. Allocated memory was 137.4 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 100.5 MB in the beginning and 585.5 MB in the end (delta: -485.0 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,442 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.83 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 158.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.44 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,445 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,445 INFO L168 Benchmark]: RCFGBuilder took 382.78 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 137.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,446 INFO L168 Benchmark]: TraceAbstraction took 261947.24 ms. Allocated memory was 201.9 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 136.5 MB in the beginning and 585.5 MB in the end (delta: -448.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2019-12-28 05:41:54,450 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.83 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 158.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 81.44 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.20 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 382.78 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 137.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261947.24 ms. Allocated memory was 201.9 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 136.5 MB in the beginning and 585.5 MB in the end (delta: -448.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 676]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 676). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 86 places, 82 transitions. Already constructed 309672 states. Currently 3173 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 244.4s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown