/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/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 15:50:30,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 15:50:30,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 15:50:30,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 15:50:30,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 15:50:30,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 15:50:30,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 15:50:30,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 15:50:30,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 15:50:30,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 15:50:30,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 15:50:30,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 15:50:30,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 15:50:30,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 15:50:30,654 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 15:50:30,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 15:50:30,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 15:50:30,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 15:50:30,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 15:50:30,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 15:50:30,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 15:50:30,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 15:50:30,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 15:50:30,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 15:50:30,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 15:50:30,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 15:50:30,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 15:50:30,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 15:50:30,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 15:50:30,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 15:50:30,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:50:30,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 15:50:30,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 15:50:30,661 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 15:50:30,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 15:50:30,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 15:50:30,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 15:50:30,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 15:50:30,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 15:50:30,913 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 15:50:30,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-03 15:50:32,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 15:50:32,283 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 15:50:32,284 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-03 15:50:32,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4e35924/54b5ec959ce94b9a8d79ac7efcdde3fe/FLAG4f1b9d843 [2023-08-03 15:50:32,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4e35924/54b5ec959ce94b9a8d79ac7efcdde3fe [2023-08-03 15:50:32,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 15:50:32,641 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 15:50:32,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 15:50:32,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 15:50:32,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 15:50:32,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:50:32" (1/1) ... [2023-08-03 15:50:32,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547cb486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:32, skipping insertion in model container [2023-08-03 15:50:32,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:50:32" (1/1) ... [2023-08-03 15:50:32,693 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 15:50:32,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i[30687,30700] [2023-08-03 15:50:32,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:50:32,946 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 15:50:32,964 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-03 15:50:32,966 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-03 15:50:32,982 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i[30687,30700] [2023-08-03 15:50:32,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:50:33,014 INFO L206 MainTranslator]: Completed translation [2023-08-03 15:50:33,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33 WrapperNode [2023-08-03 15:50:33,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 15:50:33,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 15:50:33,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 15:50:33,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 15:50:33,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,051 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 106 [2023-08-03 15:50:33,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 15:50:33,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 15:50:33,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 15:50:33,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 15:50:33,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 15:50:33,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 15:50:33,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 15:50:33,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 15:50:33,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (1/1) ... [2023-08-03 15:50:33,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:50:33,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 15:50:33,106 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 15:50:33,118 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 15:50:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-03 15:50:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 15:50:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 15:50:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 15:50:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 15:50:33,143 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 15:50:33,243 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 15:50:33,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 15:50:33,400 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 15:50:33,467 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 15:50:33,467 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 15:50:33,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:50:33 BoogieIcfgContainer [2023-08-03 15:50:33,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 15:50:33,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 15:50:33,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 15:50:33,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 15:50:33,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 03:50:32" (1/3) ... [2023-08-03 15:50:33,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150503b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:50:33, skipping insertion in model container [2023-08-03 15:50:33,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:50:33" (2/3) ... [2023-08-03 15:50:33,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150503b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:50:33, skipping insertion in model container [2023-08-03 15:50:33,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:50:33" (3/3) ... [2023-08-03 15:50:33,483 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-03 15:50:33,490 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 15:50:33,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 15:50:33,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 15:50:33,517 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 15:50:33,597 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 15:50:33,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,663 INFO L124 PetriNetUnfolderBase]: 10/105 cut-off events. [2023-08-03 15:50:33,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:50:33,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 10/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-03 15:50:33,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,676 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:50:33,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 95 transitions, 195 flow [2023-08-03 15:50:33,710 INFO L124 PetriNetUnfolderBase]: 10/105 cut-off events. [2023-08-03 15:50:33,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:50:33,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 10/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-03 15:50:33,713 INFO L119 LiptonReduction]: Number of co-enabled transitions 1984 [2023-08-03 15:50:35,453 INFO L134 LiptonReduction]: Checked pairs total: 2843 [2023-08-03 15:50:35,454 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-08-03 15:50:35,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:50:35,483 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;@b8142e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:50:35,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-03 15:50:35,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:50:35,491 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-03 15:50:35,491 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:50:35,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:50:35,492 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 15:50:35,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-03 15:50:35,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:50:35,497 INFO L85 PathProgramCache]: Analyzing trace with hash 771863353, now seen corresponding path program 1 times [2023-08-03 15:50:35,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:50:35,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872005132] [2023-08-03 15:50:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:50:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:50:35,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 15:50:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:50:35,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 15:50:35,684 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 15:50:35,685 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-03 15:50:35,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-08-03 15:50:35,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-03 15:50:35,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 15:50:35,688 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 15:50:35,692 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 15:50:35,692 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 15:50:35,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 15:50:35,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,818 INFO L124 PetriNetUnfolderBase]: 19/183 cut-off events. [2023-08-03 15:50:35,818 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-03 15:50:35,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 183 events. 19/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 412 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2023-08-03 15:50:35,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,822 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:50:35,822 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 158 transitions, 328 flow [2023-08-03 15:50:35,846 INFO L124 PetriNetUnfolderBase]: 19/183 cut-off events. [2023-08-03 15:50:35,846 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-03 15:50:35,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 183 events. 19/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 412 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2023-08-03 15:50:35,853 INFO L119 LiptonReduction]: Number of co-enabled transitions 11780 [2023-08-03 15:50:37,672 INFO L134 LiptonReduction]: Checked pairs total: 21821 [2023-08-03 15:50:37,673 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-08-03 15:50:37,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:50:37,676 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;@b8142e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:50:37,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 15:50:37,682 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:50:37,682 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2023-08-03 15:50:37,682 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-03 15:50:37,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:50:37,682 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-03 15:50:37,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-03 15:50:37,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:50:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1734102252, now seen corresponding path program 1 times [2023-08-03 15:50:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:50:37,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957457535] [2023-08-03 15:50:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:50:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:50:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:50:37,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:50:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957457535] [2023-08-03 15:50:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957457535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 15:50:37,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 15:50:37,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-03 15:50:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489950933] [2023-08-03 15:50:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 15:50:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 15:50:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:50:37,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 15:50:37,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-03 15:50:37,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 281 [2023-08-03 15:50:37,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 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 15:50:37,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:50:37,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 281 [2023-08-03 15:50:37,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 15:50:38,355 INFO L124 PetriNetUnfolderBase]: 1480/2363 cut-off events. [2023-08-03 15:50:38,355 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-03 15:50:38,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 2363 events. 1480/2363 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 11173 event pairs, 45 based on Foata normal form. 0/2052 useless extension candidates. Maximal degree in co-relation 621. Up to 1669 conditions per place. [2023-08-03 15:50:38,371 INFO L140 encePairwiseOnDemand]: 273/281 looper letters, 88 selfloop transitions, 4 changer transitions 1/101 dead transitions. [2023-08-03 15:50:38,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 101 transitions, 396 flow [2023-08-03 15:50:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-03 15:50:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-03 15:50:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 764 transitions. [2023-08-03 15:50:38,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437722419928825 [2023-08-03 15:50:38,390 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 764 transitions. [2023-08-03 15:50:38,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 764 transitions. [2023-08-03 15:50:38,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 15:50:38,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 764 transitions. [2023-08-03 15:50:38,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 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 15:50:38,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 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 15:50:38,410 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 281.0) internal successors, (1686), 6 states have internal predecessors, (1686), 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 15:50:38,411 INFO L175 Difference]: Start difference. First operand has 51 places, 54 transitions, 120 flow. Second operand 5 states and 764 transitions. [2023-08-03 15:50:38,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 101 transitions, 396 flow [2023-08-03 15:50:38,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 101 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 15:50:38,420 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 126 flow [2023-08-03 15:50:38,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2023-08-03 15:50:38,425 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2023-08-03 15:50:38,426 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 126 flow [2023-08-03 15:50:38,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 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 15:50:38,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:50:38,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 15:50:38,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 15:50:38,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-03 15:50:38,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:50:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash -423905195, now seen corresponding path program 1 times [2023-08-03 15:50:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:50:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093034403] [2023-08-03 15:50:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:50:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:50:38,923 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 15:50:38,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:50:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093034403] [2023-08-03 15:50:38,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093034403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 15:50:38,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 15:50:38,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-03 15:50:38,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727935625] [2023-08-03 15:50:38,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 15:50:38,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-03 15:50:38,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:50:38,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-03 15:50:38,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-03 15:50:39,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 281 [2023-08-03 15:50:39,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 126 flow. Second operand has 10 states, 10 states have (on average 121.7) internal successors, (1217), 10 states have internal predecessors, (1217), 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 15:50:39,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:50:39,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 281 [2023-08-03 15:50:39,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 15:50:40,256 INFO L124 PetriNetUnfolderBase]: 2150/3565 cut-off events. [2023-08-03 15:50:40,257 INFO L125 PetriNetUnfolderBase]: For 2381/2381 co-relation queries the response was YES. [2023-08-03 15:50:40,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8651 conditions, 3565 events. 2150/3565 cut-off events. For 2381/2381 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 18782 event pairs, 186 based on Foata normal form. 0/3224 useless extension candidates. Maximal degree in co-relation 6722. Up to 2370 conditions per place. [2023-08-03 15:50:40,278 INFO L140 encePairwiseOnDemand]: 265/281 looper letters, 141 selfloop transitions, 37 changer transitions 0/185 dead transitions. [2023-08-03 15:50:40,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 185 transitions, 996 flow [2023-08-03 15:50:40,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-03 15:50:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-03 15:50:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1717 transitions. [2023-08-03 15:50:40,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4700246372844238 [2023-08-03 15:50:40,283 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1717 transitions. [2023-08-03 15:50:40,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1717 transitions. [2023-08-03 15:50:40,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 15:50:40,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1717 transitions. [2023-08-03 15:50:40,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 132.07692307692307) internal successors, (1717), 13 states have internal predecessors, (1717), 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 15:50:40,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 281.0) internal successors, (3934), 14 states have internal predecessors, (3934), 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 15:50:40,297 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 281.0) internal successors, (3934), 14 states have internal predecessors, (3934), 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 15:50:40,297 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 126 flow. Second operand 13 states and 1717 transitions. [2023-08-03 15:50:40,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 185 transitions, 996 flow [2023-08-03 15:50:40,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 185 transitions, 995 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 15:50:40,302 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 400 flow [2023-08-03 15:50:40,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=400, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-08-03 15:50:40,303 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 21 predicate places. [2023-08-03 15:50:40,303 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 400 flow [2023-08-03 15:50:40,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.7) internal successors, (1217), 10 states have internal predecessors, (1217), 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 15:50:40,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:50:40,304 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 15:50:40,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 15:50:40,305 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-03 15:50:40,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:50:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash 555796734, now seen corresponding path program 1 times [2023-08-03 15:50:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:50:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641806372] [2023-08-03 15:50:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:50:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:50:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:50:40,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:50:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641806372] [2023-08-03 15:50:40,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641806372] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 15:50:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528380078] [2023-08-03 15:50:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:40,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 15:50:40,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 15:50:40,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 15:50:40,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 15:50:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:50:40,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 68 conjunts are in the unsatisfiable core [2023-08-03 15:50:40,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 15:50:40,986 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-03 15:50:41,056 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-03 15:50:41,056 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-03 15:50:41,155 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-03 15:50:41,235 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-03 15:50:41,454 INFO L322 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2023-08-03 15:50:41,454 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2023-08-03 15:50:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:50:41,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 15:50:41,765 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_95 (Array Int Int)) (|v_thr1Thread1of2ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| Int)) (not (= (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_95))) (store .cse1 |c_~#top~0.base| (store (select .cse1 |c_~#top~0.base|) |c_~#top~0.offset| (select (select .cse1 |c_thr1Thread1of2ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of2ForFork0_push_~#newTop~0#1.offset|)))))) (store .cse0 |v_thr1Thread1of2ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| (store (select .cse0 |v_thr1Thread1of2ForFork0___VERIFIER_atomic_CAS_~r#1.base_7|) |c_thr1Thread1of2ForFork0_push_~#ret~0#1.offset| 1))) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-08-03 15:50:41,828 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-03 15:50:41,828 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 52 [2023-08-03 15:50:41,843 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-03 15:50:41,844 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-03 15:50:41,950 INFO L322 Elim1Store]: treesize reduction 32, result has 54.9 percent of original size [2023-08-03 15:50:41,951 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1195 treesize of output 1146 [2023-08-03 15:50:42,014 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 341 [2023-08-03 15:50:42,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-03 15:50:42,155 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-03 15:50:42,184 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-03 15:50:42,184 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 642 treesize of output 624 [2023-08-03 15:50:42,221 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 277 [2023-08-03 15:50:42,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-08-03 15:50:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-03 15:50:42,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528380078] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 15:50:42,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 15:50:42,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 26 [2023-08-03 15:50:42,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661347597] [2023-08-03 15:50:42,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 15:50:42,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-08-03 15:50:42,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:50:42,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-08-03 15:50:42,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=605, Unknown=2, NotChecked=50, Total=756 [2023-08-03 15:50:42,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 281 [2023-08-03 15:50:42,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 400 flow. Second operand has 28 states, 28 states have (on average 89.0) internal successors, (2492), 28 states have internal predecessors, (2492), 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 15:50:42,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:50:42,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 281 [2023-08-03 15:50:42,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 15:50:48,597 INFO L124 PetriNetUnfolderBase]: 7916/12357 cut-off events. [2023-08-03 15:50:48,598 INFO L125 PetriNetUnfolderBase]: For 13034/13034 co-relation queries the response was YES. [2023-08-03 15:50:48,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36347 conditions, 12357 events. 7916/12357 cut-off events. For 13034/13034 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 78096 event pairs, 538 based on Foata normal form. 223/11942 useless extension candidates. Maximal degree in co-relation 29514. Up to 3471 conditions per place. [2023-08-03 15:50:48,691 INFO L140 encePairwiseOnDemand]: 246/281 looper letters, 608 selfloop transitions, 282 changer transitions 0/893 dead transitions. [2023-08-03 15:50:48,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 893 transitions, 5121 flow [2023-08-03 15:50:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-08-03 15:50:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2023-08-03 15:50:48,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 5302 transitions. [2023-08-03 15:50:48,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36285245004106215 [2023-08-03 15:50:48,706 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 5302 transitions. [2023-08-03 15:50:48,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 5302 transitions. [2023-08-03 15:50:48,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 15:50:48,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 5302 transitions. [2023-08-03 15:50:48,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 101.96153846153847) internal successors, (5302), 52 states have internal predecessors, (5302), 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 15:50:48,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 281.0) internal successors, (14893), 53 states have internal predecessors, (14893), 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 15:50:48,745 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 281.0) internal successors, (14893), 53 states have internal predecessors, (14893), 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 15:50:48,745 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 400 flow. Second operand 52 states and 5302 transitions. [2023-08-03 15:50:48,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 893 transitions, 5121 flow [2023-08-03 15:50:48,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 893 transitions, 5121 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 15:50:48,789 INFO L231 Difference]: Finished difference. Result has 149 places, 386 transitions, 3087 flow [2023-08-03 15:50:48,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=3087, PETRI_PLACES=149, PETRI_TRANSITIONS=386} [2023-08-03 15:50:48,790 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 98 predicate places. [2023-08-03 15:50:48,790 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 386 transitions, 3087 flow [2023-08-03 15:50:48,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.0) internal successors, (2492), 28 states have internal predecessors, (2492), 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 15:50:48,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:50:48,792 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 15:50:48,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-03 15:50:48,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 15:50:48,997 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-03 15:50:48,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:50:48,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2043569616, now seen corresponding path program 2 times [2023-08-03 15:50:48,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:50:48,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187421377] [2023-08-03 15:50:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:50:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:50:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:50:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:50:49,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:50:49,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187421377] [2023-08-03 15:50:49,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187421377] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 15:50:49,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137060173] [2023-08-03 15:50:49,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-03 15:50:49,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 15:50:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 15:50:49,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 15:50:49,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-03 15:50:49,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-03 15:50:49,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 15:50:49,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 67 conjunts are in the unsatisfiable core [2023-08-03 15:50:49,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 15:50:49,830 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-03 15:50:49,831 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-03 15:50:49,948 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-03 15:50:50,186 INFO L322 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2023-08-03 15:50:50,187 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2023-08-03 15:50:50,255 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-03 15:50:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:50:50,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 15:50:50,308 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_165 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_165) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-08-03 15:50:50,611 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-03 15:50:50,612 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 52 [2023-08-03 15:50:50,625 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-03 15:50:50,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-03 15:50:50,700 INFO L322 Elim1Store]: treesize reduction 27, result has 60.9 percent of original size [2023-08-03 15:50:50,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 105 treesize of output 127 [2023-08-03 15:50:50,791 INFO L322 Elim1Store]: treesize reduction 74, result has 46.0 percent of original size [2023-08-03 15:50:50,792 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 163 [2023-08-03 15:50:50,841 INFO L322 Elim1Store]: treesize reduction 40, result has 38.5 percent of original size [2023-08-03 15:50:50,842 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2023-08-03 15:50:50,863 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2023-08-03 15:50:51,348 INFO L322 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-08-03 15:50:51,349 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 166 [2023-08-03 15:50:51,462 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:51,463 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-03 15:50:51,484 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:51,484 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 9 [2023-08-03 15:50:51,515 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 164 [2023-08-03 15:50:51,719 INFO L322 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-08-03 15:50:51,720 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 166 [2023-08-03 15:50:51,786 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-03 15:50:51,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-08-03 15:50:51,935 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-03 15:50:51,950 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:51,951 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-03 15:50:51,969 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:51,969 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2023-08-03 15:50:52,053 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:52,053 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-03 15:50:52,075 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-03 15:50:52,076 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2023-08-03 15:50:52,885 INFO L322 Elim1Store]: treesize reduction 155, result has 40.8 percent of original size [2023-08-03 15:50:52,885 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 480 treesize of output 408 [2023-08-03 15:50:56,209 INFO L322 Elim1Store]: treesize reduction 1848, result has 14.7 percent of original size [2023-08-03 15:50:56,210 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 18 new quantified variables, introduced 144 case distinctions, treesize of input 362 treesize of output 830 [2023-08-03 15:51:11,796 WARN L233 SmtUtils]: Spent 15.14s on a formula simplification. DAG size of input: 694 DAG size of output: 124 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-03 15:51:11,797 INFO L322 Elim1Store]: treesize reduction 2248, result has 9.0 percent of original size [2023-08-03 15:51:11,798 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 88 case distinctions, treesize of input 15202 treesize of output 14628 [2023-08-03 15:51:12,819 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 618 treesize of output 602 [2023-08-03 15:51:13,213 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 602 treesize of output 600 [2023-08-03 15:51:13,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 615 treesize of output 607 Received shutdown request... [2023-08-03 16:04:29,586 WARN L265 SmtUtils]: Removed 2 from assertion stack [2023-08-03 16:04:29,590 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-03 16:04:29,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-03 16:04:29,620 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 16:04:29,620 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 16:04:29,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 16:04:29,791 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 23 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 12ms.. [2023-08-03 16:04:29,791 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 16:04:29,791 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 16:04:29,791 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-03 16:04:29,791 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-03 16:04:29,794 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 16:04:29,794 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 16:04:29,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 04:04:29 BasicIcfg [2023-08-03 16:04:29,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 16:04:29,797 INFO L158 Benchmark]: Toolchain (without parser) took 837156.24ms. Allocated memory was 620.8MB in the beginning and 897.6MB in the end (delta: 276.8MB). Free memory was 566.1MB in the beginning and 631.8MB in the end (delta: -65.7MB). Peak memory consumption was 543.6MB. Max. memory is 16.0GB. [2023-08-03 16:04:29,797 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 364.9MB. Free memory was 311.4MB in the beginning and 311.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:04:29,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.36ms. Allocated memory is still 620.8MB. Free memory was 566.1MB in the beginning and 546.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-03 16:04:29,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.64ms. Allocated memory is still 620.8MB. Free memory was 546.5MB in the beginning and 544.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:04:29,798 INFO L158 Benchmark]: Boogie Preprocessor took 23.29ms. Allocated memory is still 620.8MB. Free memory was 544.0MB in the beginning and 542.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:04:29,798 INFO L158 Benchmark]: RCFGBuilder took 394.36ms. Allocated memory is still 620.8MB. Free memory was 542.7MB in the beginning and 523.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-03 16:04:29,799 INFO L158 Benchmark]: TraceAbstraction took 836319.80ms. Allocated memory was 620.8MB in the beginning and 897.6MB in the end (delta: 276.8MB). Free memory was 522.4MB in the beginning and 631.8MB in the end (delta: -109.4MB). Peak memory consumption was 499.6MB. Max. memory is 16.0GB. [2023-08-03 16:04:29,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 364.9MB. Free memory was 311.4MB in the beginning and 311.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 372.36ms. Allocated memory is still 620.8MB. Free memory was 566.1MB in the beginning and 546.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.64ms. Allocated memory is still 620.8MB. Free memory was 546.5MB in the beginning and 544.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.29ms. Allocated memory is still 620.8MB. Free memory was 544.0MB in the beginning and 542.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 394.36ms. Allocated memory is still 620.8MB. Free memory was 542.7MB in the beginning and 523.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 836319.80ms. Allocated memory was 620.8MB in the beginning and 897.6MB in the end (delta: 276.8MB). Free memory was 522.4MB in the beginning and 631.8MB in the end (delta: -109.4MB). Peak memory consumption was 499.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 89 PlacesBefore, 27 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 1984 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 83 TotalNumberOfCompositions, 2843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1923, independent: 1755, independent conditional: 0, independent unconditional: 1755, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1108, independent: 1060, independent conditional: 0, independent unconditional: 1060, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1923, independent: 695, independent conditional: 0, independent unconditional: 695, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 1108, unknown conditional: 0, unknown unconditional: 1108] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 146 PlacesBefore, 51 PlacesAfterwards, 158 TransitionsBefore, 54 TransitionsAfterwards, 11780 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 9 ChoiceCompositions, 123 TotalNumberOfCompositions, 21821 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9565, independent: 9195, independent conditional: 0, independent unconditional: 9195, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6016, independent: 5921, independent conditional: 0, independent unconditional: 5921, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9565, independent: 3274, independent conditional: 0, independent unconditional: 3274, dependent: 275, dependent conditional: 0, dependent unconditional: 275, unknown: 6016, unknown conditional: 0, unknown unconditional: 6016] , Statistics on independence cache: Total cache size (in pairs): 311, Positive cache size: 250, Positive conditional cache size: 0, Positive unconditional cache size: 250, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 725]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 23 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 12ms.. - TimeoutResultAtElement [Line: 731]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 23 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 12ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 3 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 4 procedures, 197 locations, 4 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: 834.0s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 52 mSolverCounterUnknown, 971 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 929 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 787 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6280 IncrementalHoareTripleChecker+Invalid, 7188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 8 mSDtfsCounter, 6280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3087occurred in iteration=3, InterpolantAutomatonStates: 70, 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, 2.6s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 14 QuantifiedInterpolants, 1569 SizeOfPredicates, 23 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 8/11 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 could not prove your program: Timeout Completed graceful shutdown