/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:48:52,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:48:52,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:48:52,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:48:52,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:48:52,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:48:52,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:48:52,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:48:52,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:48:52,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:48:52,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:48:52,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:48:52,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:48:52,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:48:52,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:48:52,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:48:52,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:48:52,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:48:52,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:48:52,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:48:52,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:48:52,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:48:52,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:48:52,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:48:52,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:48:52,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:48:52,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:48:52,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:48:52,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:48:52,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:48:52,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:48:52,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:48:52,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:48:52,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:48:52,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:48:52,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:48:52,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:48:52,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:48:52,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:48:52,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:48:52,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:48:52,488 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-PN-RepeatedSemanticLbe.epf [2022-12-13 06:48:52,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:48:52,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:48:52,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:48:52,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:48:52,520 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:48:52,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:48:52,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:48:52,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:48:52,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:48:52,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:48:52,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:48:52,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:48:52,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:48:52,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:48:52,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:48:52,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:48:52,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:48:52,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:48:52,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:48:52,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:48:52,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:48:52,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:48:52,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:48:52,856 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:48:52,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2022-12-13 06:48:54,108 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:48:54,403 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:48:54,403 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2022-12-13 06:48:54,424 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb8dafb5/b320061d93794213870c18b7f7242480/FLAG1cfbb5d8f [2022-12-13 06:48:54,439 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb8dafb5/b320061d93794213870c18b7f7242480 [2022-12-13 06:48:54,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:48:54,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:48:54,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:48:54,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:48:54,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:48:54,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:54,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24894c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54, skipping insertion in model container [2022-12-13 06:48:54,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:54,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:48:54,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:48:54,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-12-13 06:48:54,811 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,818 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,825 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,836 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:48:54,850 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:48:54,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-12-13 06:48:54,914 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,915 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,933 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,936 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 06:48:54,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:48:54,995 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:48:54,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54 WrapperNode [2022-12-13 06:48:54,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:48:54,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:48:54,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:48:54,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:48:55,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,047 INFO L138 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2022-12-13 06:48:55,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:48:55,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:48:55,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:48:55,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:48:55,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:48:55,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:48:55,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:48:55,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:48:55,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (1/1) ... [2022-12-13 06:48:55,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:48:55,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:48:55,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 06:48:55,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 06:48:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2022-12-13 06:48:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:48:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2022-12-13 06:48:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2022-12-13 06:48:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure process [2022-12-13 06:48:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2022-12-13 06:48:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:48:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:48:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:48:55,153 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 06:48:55,448 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:48:55,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:48:55,637 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:48:55,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:48:55,645 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 06:48:55,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:55 BoogieIcfgContainer [2022-12-13 06:48:55,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:48:55,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:48:55,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:48:55,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:48:55,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:48:54" (1/3) ... [2022-12-13 06:48:55,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afb264b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:55, skipping insertion in model container [2022-12-13 06:48:55,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:54" (2/3) ... [2022-12-13 06:48:55,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afb264b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:55, skipping insertion in model container [2022-12-13 06:48:55,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:55" (3/3) ... [2022-12-13 06:48:55,661 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2022-12-13 06:48:55,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:48:55,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 06:48:55,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:48:55,774 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:48:55,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 152 transitions, 319 flow [2022-12-13 06:48:55,897 INFO L130 PetriNetUnfolder]: 12/149 cut-off events. [2022-12-13 06:48:55,897 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:48:55,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 149 events. 12/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 313 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-12-13 06:48:55,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 152 transitions, 319 flow [2022-12-13 06:48:55,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 149 transitions, 307 flow [2022-12-13 06:48:55,917 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:48:55,945 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 149 transitions, 307 flow [2022-12-13 06:48:55,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 149 transitions, 307 flow [2022-12-13 06:48:56,010 INFO L130 PetriNetUnfolder]: 12/149 cut-off events. [2022-12-13 06:48:56,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:48:56,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 149 events. 12/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 314 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-12-13 06:48:56,020 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 149 transitions, 307 flow [2022-12-13 06:48:56,020 INFO L226 LiptonReduction]: Number of co-enabled transitions 8738 [2022-12-13 06:49:01,768 INFO L241 LiptonReduction]: Total number of compositions: 117 [2022-12-13 06:49:01,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:49:01,798 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72cccbb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:49:01,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 06:49:01,809 INFO L130 PetriNetUnfolder]: 5/82 cut-off events. [2022-12-13 06:49:01,809 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:49:01,809 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:49:01,811 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:49:01,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 06:49:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:49:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1114939572, now seen corresponding path program 1 times [2022-12-13 06:49:01,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:49:01,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208022462] [2022-12-13 06:49:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:49:01,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:49:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:49:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:49:02,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:49:02,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208022462] [2022-12-13 06:49:02,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208022462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:49:02,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:49:02,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:49:02,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164213777] [2022-12-13 06:49:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:49:02,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:49:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:49:02,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:49:02,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:49:02,437 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 108 [2022-12-13 06:49:02,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 108 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:49:02,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:49:02,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 108 [2022-12-13 06:49:02,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:49:29,931 INFO L130 PetriNetUnfolder]: 410648/571756 cut-off events. [2022-12-13 06:49:29,931 INFO L131 PetriNetUnfolder]: For 333/333 co-relation queries the response was YES. [2022-12-13 06:49:30,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109369 conditions, 571756 events. 410648/571756 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 18784. Compared 4760256 event pairs, 108099 based on Foata normal form. 0/255359 useless extension candidates. Maximal degree in co-relation 1109358. Up to 401570 conditions per place. [2022-12-13 06:49:32,495 INFO L137 encePairwiseOnDemand]: 84/108 looper letters, 144 selfloop transitions, 12 changer transitions 0/174 dead transitions. [2022-12-13 06:49:32,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:49:32,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:49:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2022-12-13 06:49:32,506 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2022-12-13 06:49:32,509 INFO L295 CegarLoopForPetriNet]: 108 programPoint places, -6 predicate places. [2022-12-13 06:49:32,509 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:34,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:35,982 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:49:35,984 INFO L89 Accepts]: Start accepts. Operand has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:35,988 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:49:35,989 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:49:35,989 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:36,004 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:36,004 INFO L226 LiptonReduction]: Number of co-enabled transitions 4028 [2022-12-13 06:49:58,618 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:49:58,619 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22637 [2022-12-13 06:49:58,620 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 174 transitions, 675 flow [2022-12-13 06:49:58,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:49:58,620 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:49:58,620 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:49:58,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:49:58,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 06:49:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:49:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash -136353091, now seen corresponding path program 1 times [2022-12-13 06:49:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:49:58,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735173774] [2022-12-13 06:49:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:49:58,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:49:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:49:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:49:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:49:58,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735173774] [2022-12-13 06:49:58,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735173774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:49:58,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:49:58,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:49:58,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411618774] [2022-12-13 06:49:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:49:58,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:49:58,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:49:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:49:58,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:49:58,916 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 98 [2022-12-13 06:49:58,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 174 transitions, 675 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:49:58,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:49:58,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 98 [2022-12-13 06:49:58,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand