/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:35:58,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:35:58,068 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:35:58,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:35:58,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:35:58,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:35:58,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:35:58,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:35:58,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:35:58,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:35:58,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:35:58,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:35:58,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:35:58,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:35:58,098 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:35:58,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:35:58,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:35:58,098 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:35:58,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:35:58,100 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:35:58,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:35:58,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:35:58,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:35:58,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:35:58,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:35:58,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:35:58,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:35:58,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:35:58,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:35:58,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:35:58,103 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:35:58,103 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:35:58,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:35:58,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:35:58,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:35:58,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:35:58,298 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:35:58,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:35:59,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:35:59,422 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:35:59,422 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:35:59,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5854980c/beedb2cd531e436eb0de345f05aab966/FLAG85755efea [2023-08-03 17:35:59,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5854980c/beedb2cd531e436eb0de345f05aab966 [2023-08-03 17:35:59,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:35:59,448 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:35:59,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:35:59,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:35:59,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:35:59,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0c1e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59, skipping insertion in model container [2023-08-03 17:35:59,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,486 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:35:59,594 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i[969,982] [2023-08-03 17:35:59,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:35:59,767 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:35:59,778 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i[969,982] [2023-08-03 17:35:59,793 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:35:59,794 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:35:59,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:35:59,848 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:35:59,849 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:35:59,853 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:35:59,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59 WrapperNode [2023-08-03 17:35:59,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:35:59,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:35:59,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:35:59,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:35:59,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,909 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2023-08-03 17:35:59,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:35:59,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:35:59,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:35:59,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:35:59,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:35:59,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:35:59,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:35:59,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:35:59,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (1/1) ... [2023-08-03 17:35:59,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:35:59,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:35:59,963 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) [2023-08-03 17:35:59,972 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 [2023-08-03 17:35:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:35:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:35:59,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:35:59,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 17:35:59,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:35:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:35:59,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:35:59,993 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 17:36:00,090 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:36:00,091 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:36:00,322 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:36:00,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:36:00,390 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 17:36:00,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:36:00 BoogieIcfgContainer [2023-08-03 17:36:00,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:36:00,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:36:00,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:36:00,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:36:00,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:35:59" (1/3) ... [2023-08-03 17:36:00,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4cc3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:36:00, skipping insertion in model container [2023-08-03 17:36:00,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:35:59" (2/3) ... [2023-08-03 17:36:00,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4cc3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:36:00, skipping insertion in model container [2023-08-03 17:36:00,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:36:00" (3/3) ... [2023-08-03 17:36:00,398 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix045_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:36:00,403 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:36:00,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:36:00,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:36:00,409 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:36:00,450 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:36:00,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,589 INFO L124 PetriNetUnfolderBase]: 30/457 cut-off events. [2023-08-03 17:36:00,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:36:00,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 457 events. 30/457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2036 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 270. Up to 16 conditions per place. [2023-08-03 17:36:00,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,601 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:36:00,611 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,614 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 132 transitions, 279 flow [2023-08-03 17:36:00,654 INFO L124 PetriNetUnfolderBase]: 30/457 cut-off events. [2023-08-03 17:36:00,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:36:00,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 457 events. 30/457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2036 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 270. Up to 16 conditions per place. [2023-08-03 17:36:00,661 INFO L119 LiptonReduction]: Number of co-enabled transitions 2944 [2023-08-03 17:36:03,408 INFO L134 LiptonReduction]: Checked pairs total: 7500 [2023-08-03 17:36:03,409 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-08-03 17:36:03,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:36:03,421 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=true, 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;@19f3c076, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:36:03,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:36:03,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:36:03,423 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-03 17:36:03,423 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:36:03,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:36:03,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:36:03,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:36:03,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:36:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash 17618383, now seen corresponding path program 1 times [2023-08-03 17:36:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:36:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901525823] [2023-08-03 17:36:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:36:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:36:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:36:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 17:36:03,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:36:03,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901525823] [2023-08-03 17:36:03,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901525823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:36:03,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:36:03,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:36:03,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088646439] [2023-08-03 17:36:03,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:36:03,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:36:03,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:36:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:36:03,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:36:03,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 244 [2023-08-03 17:36:03,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2023-08-03 17:36:03,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:36:03,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 244 [2023-08-03 17:36:03,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:36:04,230 INFO L124 PetriNetUnfolderBase]: 2938/4916 cut-off events. [2023-08-03 17:36:04,231 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-03 17:36:04,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9570 conditions, 4916 events. 2938/4916 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 30907 event pairs, 784 based on Foata normal form. 175/4534 useless extension candidates. Maximal degree in co-relation 8096. Up to 3136 conditions per place. [2023-08-03 17:36:04,252 INFO L140 encePairwiseOnDemand]: 240/244 looper letters, 47 selfloop transitions, 2 changer transitions 4/58 dead transitions. [2023-08-03 17:36:04,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 243 flow [2023-08-03 17:36:04,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:36:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:36:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-08-03 17:36:04,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5478142076502732 [2023-08-03 17:36:04,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-08-03 17:36:04,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-08-03 17:36:04,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:36:04,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-08-03 17:36:04,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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) [2023-08-03 17:36:04,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-03 17:36:04,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-03 17:36:04,281 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 87 flow. Second operand 3 states and 401 transitions. [2023-08-03 17:36:04,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 243 flow [2023-08-03 17:36:04,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:36:04,286 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 83 flow [2023-08-03 17:36:04,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2023-08-03 17:36:04,290 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-08-03 17:36:04,290 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 83 flow [2023-08-03 17:36:04,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2023-08-03 17:36:04,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:36:04,290 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:36:04,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:36:04,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:36:04,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:36:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -248522029, now seen corresponding path program 1 times [2023-08-03 17:36:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:36:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441411970] [2023-08-03 17:36:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:36:04,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:36:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:36:04,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:36:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:36:04,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:36:04,334 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:36:04,335 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 17:36:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:36:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:36:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:36:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:36:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:36:04,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:36:04,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 17:36:04,339 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:36:04,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:36:04,359 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:36:04,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,477 INFO L124 PetriNetUnfolderBase]: 93/1414 cut-off events. [2023-08-03 17:36:04,478 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:36:04,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 1414 events. 93/1414 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9866 event pairs, 0 based on Foata normal form. 0/1253 useless extension candidates. Maximal degree in co-relation 1019. Up to 54 conditions per place. [2023-08-03 17:36:04,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,486 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:36:04,486 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,486 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 159 transitions, 354 flow [2023-08-03 17:36:04,578 INFO L124 PetriNetUnfolderBase]: 93/1414 cut-off events. [2023-08-03 17:36:04,578 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:36:04,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 1414 events. 93/1414 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9866 event pairs, 0 based on Foata normal form. 0/1253 useless extension candidates. Maximal degree in co-relation 1019. Up to 54 conditions per place. [2023-08-03 17:36:04,600 INFO L119 LiptonReduction]: Number of co-enabled transitions 7180 [2023-08-03 17:36:07,222 INFO L134 LiptonReduction]: Checked pairs total: 23688 [2023-08-03 17:36:07,222 INFO L136 LiptonReduction]: Total number of compositions: 118 [2023-08-03 17:36:07,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:36:07,224 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=true, 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;@19f3c076, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:36:07,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-03 17:36:07,226 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:36:07,226 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-03 17:36:07,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:36:07,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:36:07,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:36:07,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:36:07,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:36:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 26982283, now seen corresponding path program 1 times [2023-08-03 17:36:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:36:07,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872689091] [2023-08-03 17:36:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:36:07,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:36:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:36:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 17:36:07,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:36:07,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872689091] [2023-08-03 17:36:07,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872689091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:36:07,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:36:07,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:36:07,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373275303] [2023-08-03 17:36:07,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:36:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:36:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:36:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:36:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:36:07,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 277 [2023-08-03 17:36:07,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 58 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2023-08-03 17:36:07,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:36:07,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 277 [2023-08-03 17:36:07,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:37:11,707 INFO L124 PetriNetUnfolderBase]: 633758/832390 cut-off events. [2023-08-03 17:37:11,707 INFO L125 PetriNetUnfolderBase]: For 9530/9530 co-relation queries the response was YES. [2023-08-03 17:37:13,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635893 conditions, 832390 events. 633758/832390 cut-off events. For 9530/9530 co-relation queries the response was YES. Maximal size of possible extension queue 21726. Compared 6403677 event pairs, 105182 based on Foata normal form. 17577/750724 useless extension candidates. Maximal degree in co-relation 1377051. Up to 729279 conditions per place. [2023-08-03 17:37:16,425 INFO L140 encePairwiseOnDemand]: 271/277 looper letters, 75 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2023-08-03 17:37:16,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 92 transitions, 397 flow [2023-08-03 17:37:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:37:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:37:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2023-08-03 17:37:16,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5788206979542719 [2023-08-03 17:37:16,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2023-08-03 17:37:16,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2023-08-03 17:37:16,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:37:16,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2023-08-03 17:37:16,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2023-08-03 17:37:16,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2023-08-03 17:37:16,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2023-08-03 17:37:16,430 INFO L175 Difference]: Start difference. First operand has 70 places, 58 transitions, 152 flow. Second operand 3 states and 481 transitions. [2023-08-03 17:37:16,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 92 transitions, 397 flow [2023-08-03 17:37:16,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 92 transitions, 391 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 17:37:16,440 INFO L231 Difference]: Finished difference. Result has 73 places, 59 transitions, 165 flow [2023-08-03 17:37:16,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2023-08-03 17:37:16,440 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2023-08-03 17:37:16,440 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 165 flow [2023-08-03 17:37:16,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2023-08-03 17:37:16,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:37:16,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:37:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:37:16,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:37:16,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:37:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash 297591999, now seen corresponding path program 1 times [2023-08-03 17:37:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:37:16,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656852440] [2023-08-03 17:37:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:37:16,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:37:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:37:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 17:37:16,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:37:16,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656852440] [2023-08-03 17:37:16,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656852440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:37:16,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:37:16,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:37:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141249082] [2023-08-03 17:37:16,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:37:16,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:37:16,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:37:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:37:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:37:16,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 277 [2023-08-03 17:37:16,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2023-08-03 17:37:16,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:37:16,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 277 [2023-08-03 17:37:16,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:38:21,262 INFO L124 PetriNetUnfolderBase]: 618374/804809 cut-off events. [2023-08-03 17:38:21,262 INFO L125 PetriNetUnfolderBase]: For 61744/61744 co-relation queries the response was YES. [2023-08-03 17:38:23,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1693996 conditions, 804809 events. 618374/804809 cut-off events. For 61744/61744 co-relation queries the response was YES. Maximal size of possible extension queue 20520. Compared 5834872 event pairs, 518026 based on Foata normal form. 0/704084 useless extension candidates. Maximal degree in co-relation 1115579. Up to 771849 conditions per place. [2023-08-03 17:38:26,131 INFO L140 encePairwiseOnDemand]: 274/277 looper letters, 48 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2023-08-03 17:38:26,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 278 flow [2023-08-03 17:38:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:38:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:38:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-08-03 17:38:26,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282791817087846 [2023-08-03 17:38:26,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-08-03 17:38:26,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-08-03 17:38:26,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:38:26,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-08-03 17:38:26,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2023-08-03 17:38:26,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2023-08-03 17:38:26,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2023-08-03 17:38:26,136 INFO L175 Difference]: Start difference. First operand has 73 places, 59 transitions, 165 flow. Second operand 3 states and 439 transitions. [2023-08-03 17:38:26,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 278 flow [2023-08-03 17:38:26,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 64 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:38:26,153 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 174 flow [2023-08-03 17:38:26,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2023-08-03 17:38:26,154 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2023-08-03 17:38:26,154 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 174 flow [2023-08-03 17:38:26,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2023-08-03 17:38:26,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:38:26,155 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:38:26,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:38:26,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:38:26,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:38:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash 595566809, now seen corresponding path program 1 times [2023-08-03 17:38:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:38:26,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679921368] [2023-08-03 17:38:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:38:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:38:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:38:26,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:38:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:38:26,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:38:26,179 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:38:26,179 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-03 17:38:26,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-03 17:38:26,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-03 17:38:26,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-03 17:38:26,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-03 17:38:26,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-03 17:38:26,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-03 17:38:26,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:38:26,180 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:38:26,183 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:38:26,183 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:38:26,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:38:26 BasicIcfg [2023-08-03 17:38:26,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:38:26,233 INFO L158 Benchmark]: Toolchain (without parser) took 146784.05ms. Allocated memory was 541.1MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 499.2MB in the beginning and 9.3GB in the end (delta: -8.8GB). Peak memory consumption was 6.6GB. Max. memory is 16.0GB. [2023-08-03 17:38:26,233 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 343.9MB. Free memory was 297.5MB in the beginning and 297.3MB in the end (delta: 203.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:38:26,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.01ms. Allocated memory is still 541.1MB. Free memory was 499.2MB in the beginning and 475.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-03 17:38:26,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.84ms. Allocated memory is still 541.1MB. Free memory was 475.4MB in the beginning and 472.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:38:26,234 INFO L158 Benchmark]: Boogie Preprocessor took 21.86ms. Allocated memory is still 541.1MB. Free memory was 472.9MB in the beginning and 470.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:38:26,234 INFO L158 Benchmark]: RCFGBuilder took 459.56ms. Allocated memory is still 541.1MB. Free memory was 470.9MB in the beginning and 487.2MB in the end (delta: -16.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. [2023-08-03 17:38:26,234 INFO L158 Benchmark]: TraceAbstraction took 145838.96ms. Allocated memory was 541.1MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 486.2MB in the beginning and 9.3GB in the end (delta: -8.8GB). Peak memory consumption was 6.6GB. Max. memory is 16.0GB. [2023-08-03 17:38:26,235 INFO L338 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 343.9MB. Free memory was 297.5MB in the beginning and 297.3MB in the end (delta: 203.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 405.01ms. Allocated memory is still 541.1MB. Free memory was 499.2MB in the beginning and 475.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.84ms. Allocated memory is still 541.1MB. Free memory was 475.4MB in the beginning and 472.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.86ms. Allocated memory is still 541.1MB. Free memory was 472.9MB in the beginning and 470.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 459.56ms. Allocated memory is still 541.1MB. Free memory was 470.9MB in the beginning and 487.2MB in the end (delta: -16.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. * TraceAbstraction took 145838.96ms. Allocated memory was 541.1MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 486.2MB in the beginning and 9.3GB in the end (delta: -8.8GB). Peak memory consumption was 6.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 134 PlacesBefore, 42 PlacesAfterwards, 132 TransitionsBefore, 36 TransitionsAfterwards, 2944 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 112 TotalNumberOfCompositions, 7500 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3997, independent: 3821, independent conditional: 0, independent unconditional: 3821, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1571, independent: 1538, independent conditional: 0, independent unconditional: 1538, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3997, independent: 2283, independent conditional: 0, independent unconditional: 2283, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 1571, unknown conditional: 0, unknown unconditional: 1571] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 172, Positive conditional cache size: 0, Positive unconditional cache size: 172, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 167 PlacesBefore, 70 PlacesAfterwards, 159 TransitionsBefore, 58 TransitionsAfterwards, 7180 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 118 TotalNumberOfCompositions, 23688 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8306, independent: 7959, independent conditional: 0, independent unconditional: 7959, dependent: 347, dependent conditional: 0, dependent unconditional: 347, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3390, independent: 3322, independent conditional: 0, independent unconditional: 3322, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8306, independent: 4637, independent conditional: 0, independent unconditional: 4637, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 3390, unknown conditional: 0, unknown unconditional: 3390] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 326, Positive conditional cache size: 0, Positive unconditional cache size: 326, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool a$flush_delayed; [L717] 0 int a$mem_tmp; [L718] 0 _Bool a$r_buff0_thd0; [L719] 0 _Bool a$r_buff0_thd1; [L720] 0 _Bool a$r_buff0_thd2; [L721] 0 _Bool a$r_buff0_thd3; [L722] 0 _Bool a$r_buff1_thd0; [L723] 0 _Bool a$r_buff1_thd1; [L724] 0 _Bool a$r_buff1_thd2; [L725] 0 _Bool a$r_buff1_thd3; [L726] 0 _Bool a$read_delayed; [L727] 0 int *a$read_delayed_var; [L728] 0 int a$w_buff0; [L729] 0 _Bool a$w_buff0_used; [L730] 0 int a$w_buff1; [L731] 0 _Bool a$w_buff1_used; [L732] 0 _Bool main$tmp_guard0; [L733] 0 _Bool main$tmp_guard1; [L735] 0 int x = 0; [L737] 0 int y = 0; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L841] 0 pthread_t t1193[2]; [L842] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t1193={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L842] COND TRUE 0 asdf<2 [L842] FCALL, FORK 0 pthread_create(&t1193[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1193[asdf], ((void *)0), P0, ((void *)0))=-2, t1193={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L745] 1 a$w_buff1 = a$w_buff0 [L746] 1 a$w_buff0 = 1 [L747] 1 a$w_buff1_used = a$w_buff0_used [L748] 1 a$w_buff0_used = (_Bool)1 [L749] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L749] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L750] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L751] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L752] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L753] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L754] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L842] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t1193={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L842] COND TRUE 0 asdf<2 [L842] FCALL, FORK 0 pthread_create(&t1193[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1193[asdf], ((void *)0), P0, ((void *)0))=-1, t1193={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L745] 2 a$w_buff1 = a$w_buff0 [L746] 2 a$w_buff0 = 1 [L747] 2 a$w_buff1_used = a$w_buff0_used [L748] 2 a$w_buff0_used = (_Bool)1 [L749] CALL 2 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=1, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=1, a$w_buff1_used=1, a=0, expression=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 155 locations, 6 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: 3.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 10 procedures, 182 locations, 7 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: 141.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 138.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 2 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-03 17:38:26,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...