/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:57:38,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:57:38,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:57:38,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:57:38,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:57:38,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:57:38,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:57:38,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:57:38,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:57:38,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:57:38,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:57:38,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:57:38,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:57:38,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:57:38,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:57:38,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:57:38,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:57:38,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:57:38,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:57:38,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:57:38,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:57:38,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:57:38,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:57:38,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:57:38,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:57:38,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:57:38,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:57:38,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:57:38,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:57:38,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:57:38,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:57:38,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:57:38,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:57:38,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:57:38,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:57:38,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:57:38,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:57:38,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:57:38,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:57:38,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:57:38,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:57:38,475 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-NoLbe.epf [2022-12-06 16:57:38,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:57:38,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:57:38,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:57:38,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:57:38,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:57:38,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:57:38,491 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:57:38,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:57:38,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:57:38,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:38,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:57:38,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:57:38,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:57:38,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:57:38,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:57:38,494 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:57:38,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:57:38,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:57:38,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:57:38,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:57:38,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:57:38,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:57:38,847 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:57:38,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 16:57:39,807 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:57:40,126 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:57:40,127 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 16:57:40,158 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab5ec04b/afaa0925c1ed4d20b8ebd1adf33a5179/FLAGf1d2b47f7 [2022-12-06 16:57:40,367 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab5ec04b/afaa0925c1ed4d20b8ebd1adf33a5179 [2022-12-06 16:57:40,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:57:40,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:57:40,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:40,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:57:40,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:57:40,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556361cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40, skipping insertion in model container [2022-12-06 16:57:40,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:57:40,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:57:40,524 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-06 16:57:40,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:40,624 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:57:40,634 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-06 16:57:40,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:40,713 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:57:40,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40 WrapperNode [2022-12-06 16:57:40,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:40,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:40,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:57:40,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:57:40,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,766 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-06 16:57:40,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:40,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:57:40,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:57:40,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:57:40,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,795 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:57:40,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:57:40,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:57:40,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:57:40,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (1/1) ... [2022-12-06 16:57:40,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:40,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:57:40,859 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) [2022-12-06 16:57:40,919 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 [2022-12-06 16:57:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:57:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:57:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:57:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:57:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:57:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:57:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:57:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:57:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:57:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:57:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:57:40,949 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:57:41,081 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:57:41,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:57:41,223 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:57:41,228 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:57:41,228 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:57:41,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:41 BoogieIcfgContainer [2022-12-06 16:57:41,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:57:41,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:57:41,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:57:41,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:57:41,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:57:40" (1/3) ... [2022-12-06 16:57:41,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277d70d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:41, skipping insertion in model container [2022-12-06 16:57:41,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:40" (2/3) ... [2022-12-06 16:57:41,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277d70d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:41, skipping insertion in model container [2022-12-06 16:57:41,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:41" (3/3) ... [2022-12-06 16:57:41,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 16:57:41,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:57:41,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:57:41,251 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:57:41,287 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:57:41,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 158 flow [2022-12-06 16:57:41,361 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-12-06 16:57:41,362 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:57:41,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 1/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-06 16:57:41,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 75 transitions, 158 flow [2022-12-06 16:57:41,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 125 flow [2022-12-06 16:57:41,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:57:41,391 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=PETRI_NET, 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;@25aa58b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:57:41,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 16:57:41,421 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-12-06 16:57:41,421 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:57:41,421 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:41,422 INFO L213 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:41,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:57:41,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash 490068283, now seen corresponding path program 1 times [2022-12-06 16:57:41,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:41,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131416922] [2022-12-06 16:57:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:41,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:41,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:41,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131416922] [2022-12-06 16:57:41,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131416922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:41,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:41,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:57:41,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142901387] [2022-12-06 16:57:41,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:41,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:57:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:57:41,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:57:41,908 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2022-12-06 16:57:41,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2022-12-06 16:57:41,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:41,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2022-12-06 16:57:41,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:41,984 INFO L130 PetriNetUnfolder]: 17/135 cut-off events. [2022-12-06 16:57:41,984 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:57:41,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 135 events. 17/135 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 368 event pairs, 8 based on Foata normal form. 5/139 useless extension candidates. Maximal degree in co-relation 154. Up to 24 conditions per place. [2022-12-06 16:57:41,986 INFO L137 encePairwiseOnDemand]: 70/75 looper letters, 8 selfloop transitions, 2 changer transitions 13/74 dead transitions. [2022-12-06 16:57:41,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 74 transitions, 197 flow [2022-12-06 16:57:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:57:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:57:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 452 transitions. [2022-12-06 16:57:41,997 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8609523809523809 [2022-12-06 16:57:42,000 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 6 predicate places. [2022-12-06 16:57:42,000 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 197 flow [2022-12-06 16:57:42,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2022-12-06 16:57:42,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:42,001 INFO L213 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:42,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:57:42,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:57:42,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 245271335, now seen corresponding path program 1 times [2022-12-06 16:57:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:42,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652933158] [2022-12-06 16:57:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:42,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:42,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652933158] [2022-12-06 16:57:42,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652933158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:42,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:42,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:57:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546481729] [2022-12-06 16:57:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:42,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:57:42,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:57:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:57:42,105 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 75 [2022-12-06 16:57:42,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 74 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-12-06 16:57:42,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:42,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 75 [2022-12-06 16:57:42,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:42,152 INFO L130 PetriNetUnfolder]: 13/147 cut-off events. [2022-12-06 16:57:42,153 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 16:57:42,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 147 events. 13/147 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 353 event pairs, 8 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 193. Up to 33 conditions per place. [2022-12-06 16:57:42,154 INFO L137 encePairwiseOnDemand]: 67/75 looper letters, 13 selfloop transitions, 8 changer transitions 3/68 dead transitions. [2022-12-06 16:57:42,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 207 flow [2022-12-06 16:57:42,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:57:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:57:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2022-12-06 16:57:42,155 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8177777777777778 [2022-12-06 16:57:42,156 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 6 predicate places. [2022-12-06 16:57:42,156 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 207 flow [2022-12-06 16:57:42,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-12-06 16:57:42,156 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:42,156 INFO L213 CegarLoopForPetriNet]: 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, 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] [2022-12-06 16:57:42,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:57:42,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:57:42,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:42,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1613044138, now seen corresponding path program 1 times [2022-12-06 16:57:42,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:42,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294182537] [2022-12-06 16:57:42,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:42,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:42,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:42,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294182537] [2022-12-06 16:57:42,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294182537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:42,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:42,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:57:42,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456320427] [2022-12-06 16:57:42,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:42,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:57:42,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:42,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:57:42,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:57:42,322 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2022-12-06 16:57:42,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 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) [2022-12-06 16:57:42,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:42,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2022-12-06 16:57:42,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:42,386 INFO L130 PetriNetUnfolder]: 6/102 cut-off events. [2022-12-06 16:57:42,386 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-06 16:57:42,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 102 events. 6/102 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 1 based on Foata normal form. 7/109 useless extension candidates. Maximal degree in co-relation 146. Up to 25 conditions per place. [2022-12-06 16:57:42,387 INFO L137 encePairwiseOnDemand]: 70/75 looper letters, 21 selfloop transitions, 7 changer transitions 3/69 dead transitions. [2022-12-06 16:57:42,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 267 flow [2022-12-06 16:57:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:57:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:57:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 262 transitions. [2022-12-06 16:57:42,389 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6986666666666667 [2022-12-06 16:57:42,389 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2022-12-06 16:57:42,389 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 267 flow [2022-12-06 16:57:42,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 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) [2022-12-06 16:57:42,390 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:42,390 INFO L213 CegarLoopForPetriNet]: 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, 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] [2022-12-06 16:57:42,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:57:42,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:57:42,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:42,390 INFO L85 PathProgramCache]: Analyzing trace with hash 438202675, now seen corresponding path program 1 times [2022-12-06 16:57:42,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:42,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062137148] [2022-12-06 16:57:42,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:42,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:42,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:42,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062137148] [2022-12-06 16:57:42,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062137148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:42,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:42,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:57:42,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66305296] [2022-12-06 16:57:42,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:42,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:57:42,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:42,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:57:42,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:57:42,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 75 [2022-12-06 16:57:42,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 267 flow. Second operand has 8 states, 8 states have (on average 60.5) internal successors, (484), 8 states have internal predecessors, (484), 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) [2022-12-06 16:57:42,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:42,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 75 [2022-12-06 16:57:42,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:42,646 INFO L130 PetriNetUnfolder]: 6/100 cut-off events. [2022-12-06 16:57:42,647 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-06 16:57:42,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 100 events. 6/100 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 137 event pairs, 1 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 161. Up to 25 conditions per place. [2022-12-06 16:57:42,647 INFO L137 encePairwiseOnDemand]: 65/75 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2022-12-06 16:57:42,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 67 transitions, 289 flow [2022-12-06 16:57:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:57:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:57:42,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 602 transitions. [2022-12-06 16:57:42,649 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8026666666666666 [2022-12-06 16:57:42,651 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 17 predicate places. [2022-12-06 16:57:42,651 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 289 flow [2022-12-06 16:57:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 60.5) internal successors, (484), 8 states have internal predecessors, (484), 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) [2022-12-06 16:57:42,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 16:57:42,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 16:57:42,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:57:42,669 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 16:57:42,672 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:57:42,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:57:42,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:57:42 BasicIcfg [2022-12-06 16:57:42,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:57:42,677 INFO L158 Benchmark]: Toolchain (without parser) took 2305.44ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 160.7MB in the beginning and 98.0MB in the end (delta: 62.8MB). Peak memory consumption was 136.7MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,678 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:57:42,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.05ms. Allocated memory is still 185.6MB. Free memory was 160.7MB in the beginning and 141.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 185.6MB. Free memory was 141.3MB in the beginning and 139.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,681 INFO L158 Benchmark]: Boogie Preprocessor took 29.65ms. Allocated memory is still 185.6MB. Free memory was 139.7MB in the beginning and 138.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,681 INFO L158 Benchmark]: RCFGBuilder took 432.36ms. Allocated memory is still 185.6MB. Free memory was 138.2MB in the beginning and 124.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,681 INFO L158 Benchmark]: TraceAbstraction took 1443.79ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 124.0MB in the beginning and 98.0MB in the end (delta: 26.1MB). Peak memory consumption was 100.0MB. Max. memory is 8.0GB. [2022-12-06 16:57:42,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 342.05ms. Allocated memory is still 185.6MB. Free memory was 160.7MB in the beginning and 141.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 185.6MB. Free memory was 141.3MB in the beginning and 139.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.65ms. Allocated memory is still 185.6MB. Free memory was 139.7MB in the beginning and 138.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 432.36ms. Allocated memory is still 185.6MB. Free memory was 138.2MB in the beginning and 124.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1443.79ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 124.0MB in the beginning and 98.0MB in the end (delta: 26.1MB). Peak memory consumption was 100.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 31 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=4, InterpolantAutomatonStates: 25, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:57:42,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...