/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 14:36:10,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 14:36:10,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 14:36:10,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 14:36:10,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 14:36:10,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 14:36:10,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 14:36:10,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 14:36:10,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 14:36:10,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 14:36:10,986 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 14:36:10,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 14:36:10,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 14:36:10,986 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 14:36:10,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 14:36:10,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 14:36:10,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 14:36:10,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 14:36:10,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 14:36:10,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 14:36:10,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 14:36:10,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 14:36:10,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 14:36:10,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 14:36:10,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 14:36:10,989 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 14:36:10,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 14:36:10,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:36:10,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 14:36:10,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 14:36:10,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 14:36:10,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 14:36:10,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 14:36:10,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 14:36:10,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 14:36:10,992 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 14:36:11,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 14:36:11,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 14:36:11,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 14:36:11,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 14:36:11,332 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 14:36:11,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-08-26 14:36:12,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 14:36:12,699 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 14:36:12,700 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-08-26 14:36:12,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdba94a2f/32bd13d56e3a4e168ffaf1d1b5ceb78d/FLAG663fe3c28 [2023-08-26 14:36:12,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdba94a2f/32bd13d56e3a4e168ffaf1d1b5ceb78d [2023-08-26 14:36:12,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 14:36:12,736 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 14:36:12,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 14:36:12,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 14:36:12,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 14:36:12,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:36:12" (1/1) ... [2023-08-26 14:36:12,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd7c907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:12, skipping insertion in model container [2023-08-26 14:36:12,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:36:12" (1/1) ... [2023-08-26 14:36:12,783 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 14:36:13,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:36:13,125 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 14:36:13,153 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:36:13,154 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:36:13,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:36:13,202 INFO L206 MainTranslator]: Completed translation [2023-08-26 14:36:13,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13 WrapperNode [2023-08-26 14:36:13,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 14:36:13,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 14:36:13,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 14:36:13,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 14:36:13,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,255 INFO L138 Inliner]: procedures = 177, calls = 48, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 193 [2023-08-26 14:36:13,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 14:36:13,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 14:36:13,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 14:36:13,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 14:36:13,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 14:36:13,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 14:36:13,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 14:36:13,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 14:36:13,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (1/1) ... [2023-08-26 14:36:13,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:36:13,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 14:36:13,313 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) [2023-08-26 14:36:13,338 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 [2023-08-26 14:36:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 14:36:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-26 14:36:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-26 14:36:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 14:36:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 14:36:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 14:36:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 14:36:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 14:36:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 14:36:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 14:36:13,356 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 14:36:13,501 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 14:36:13,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 14:36:13,893 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 14:36:14,053 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 14:36:14,053 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 14:36:14,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:36:14 BoogieIcfgContainer [2023-08-26 14:36:14,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 14:36:14,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 14:36:14,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 14:36:14,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 14:36:14,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:36:12" (1/3) ... [2023-08-26 14:36:14,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fcd501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:36:14, skipping insertion in model container [2023-08-26 14:36:14,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:13" (2/3) ... [2023-08-26 14:36:14,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fcd501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:36:14, skipping insertion in model container [2023-08-26 14:36:14,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:36:14" (3/3) ... [2023-08-26 14:36:14,060 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2023-08-26 14:36:14,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 14:36:14,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-08-26 14:36:14,075 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 14:36:14,160 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:14,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,238 INFO L124 PetriNetUnfolderBase]: 11/168 cut-off events. [2023-08-26 14:36:14,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:14,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 11/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 132. Up to 4 conditions per place. [2023-08-26 14:36:14,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,250 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:14,256 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,259 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:14,290 INFO L124 PetriNetUnfolderBase]: 11/168 cut-off events. [2023-08-26 14:36:14,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:14,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 11/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 132. Up to 4 conditions per place. [2023-08-26 14:36:14,294 INFO L119 LiptonReduction]: Number of co-enabled transitions 3540 [2023-08-26 14:36:21,213 INFO L134 LiptonReduction]: Checked pairs total: 5664 [2023-08-26 14:36:21,214 INFO L136 LiptonReduction]: Total number of compositions: 171 [2023-08-26 14:36:21,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:21,228 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:21,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:21,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:21,234 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-08-26 14:36:21,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:21,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:21,234 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-26 14:36:21,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:21,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:21,239 INFO L85 PathProgramCache]: Analyzing trace with hash -687988900, now seen corresponding path program 1 times [2023-08-26 14:36:21,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:21,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792108979] [2023-08-26 14:36:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:21,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:21,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:21,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:21,428 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:21,429 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:21,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 14:36:21,431 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:21,436 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:21,437 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:21,437 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-26 14:36:21,558 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:21,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,653 INFO L124 PetriNetUnfolderBase]: 21/301 cut-off events. [2023-08-26 14:36:21,654 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:21,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 301 events. 21/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 886 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 250. Up to 6 conditions per place. [2023-08-26 14:36:21,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,663 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:21,663 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:21,709 INFO L124 PetriNetUnfolderBase]: 21/301 cut-off events. [2023-08-26 14:36:21,709 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:21,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 301 events. 21/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 886 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 250. Up to 6 conditions per place. [2023-08-26 14:36:21,728 INFO L119 LiptonReduction]: Number of co-enabled transitions 35164 [2023-08-26 14:36:28,208 INFO L134 LiptonReduction]: Checked pairs total: 103486 [2023-08-26 14:36:28,208 INFO L136 LiptonReduction]: Total number of compositions: 229 [2023-08-26 14:36:28,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:28,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:28,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:28,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:28,217 INFO L124 PetriNetUnfolderBase]: 3/58 cut-off events. [2023-08-26 14:36:28,217 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:28,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:28,217 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-26 14:36:28,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:28,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash -903108908, now seen corresponding path program 1 times [2023-08-26 14:36:28,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:28,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283600107] [2023-08-26 14:36:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:28,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:28,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:28,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:28,280 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:28,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:28,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 14:36:28,280 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:28,286 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:28,286 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:28,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-26 14:36:28,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:28,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,494 INFO L124 PetriNetUnfolderBase]: 31/434 cut-off events. [2023-08-26 14:36:28,494 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:28,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 31/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1612 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 368. Up to 8 conditions per place. [2023-08-26 14:36:28,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:28,506 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,507 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:28,598 INFO L124 PetriNetUnfolderBase]: 31/434 cut-off events. [2023-08-26 14:36:28,599 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:28,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 31/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1612 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 368. Up to 8 conditions per place. [2023-08-26 14:36:28,633 INFO L119 LiptonReduction]: Number of co-enabled transitions 94872 [2023-08-26 14:36:37,140 INFO L134 LiptonReduction]: Checked pairs total: 291122 [2023-08-26 14:36:37,140 INFO L136 LiptonReduction]: Total number of compositions: 327 [2023-08-26 14:36:37,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:37,143 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:37,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:37,154 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:37,154 INFO L124 PetriNetUnfolderBase]: 8/119 cut-off events. [2023-08-26 14:36:37,154 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:37,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:37,154 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-26 14:36:37,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:37,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 343399504, now seen corresponding path program 1 times [2023-08-26 14:36:37,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:37,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142306941] [2023-08-26 14:36:37,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:37,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:37,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:37,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:37,200 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:37,200 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:37,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 14:36:37,200 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:37,201 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:37,201 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:37,201 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-26 14:36:37,357 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:37,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,468 INFO L124 PetriNetUnfolderBase]: 41/567 cut-off events. [2023-08-26 14:36:37,469 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:37,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 567 events. 41/567 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2439 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 486. Up to 10 conditions per place. [2023-08-26 14:36:37,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,497 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:37,497 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,497 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:37,601 INFO L124 PetriNetUnfolderBase]: 41/567 cut-off events. [2023-08-26 14:36:37,602 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:37,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 567 events. 41/567 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2439 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 486. Up to 10 conditions per place. [2023-08-26 14:36:37,653 INFO L119 LiptonReduction]: Number of co-enabled transitions 182664 [2023-08-26 14:36:48,564 INFO L134 LiptonReduction]: Checked pairs total: 580822 [2023-08-26 14:36:48,564 INFO L136 LiptonReduction]: Total number of compositions: 417 [2023-08-26 14:36:48,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:48,567 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:48,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:48,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:48,587 INFO L124 PetriNetUnfolderBase]: 14/191 cut-off events. [2023-08-26 14:36:48,588 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:48,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:48,588 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-26 14:36:48,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:48,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:48,588 INFO L85 PathProgramCache]: Analyzing trace with hash 34825928, now seen corresponding path program 1 times [2023-08-26 14:36:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:48,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812736149] [2023-08-26 14:36:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:48,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:48,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:48,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:48,629 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:48,629 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:48,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 14:36:48,630 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:48,630 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:48,630 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:48,630 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-26 14:36:48,744 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:48,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:48,898 INFO L124 PetriNetUnfolderBase]: 51/700 cut-off events. [2023-08-26 14:36:48,898 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:36:48,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 700 events. 51/700 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3263 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 604. Up to 12 conditions per place. [2023-08-26 14:36:48,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:48,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:48,924 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:48,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:48,924 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:48,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:49,103 INFO L124 PetriNetUnfolderBase]: 51/700 cut-off events. [2023-08-26 14:36:49,103 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:36:49,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 700 events. 51/700 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3263 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 604. Up to 12 conditions per place. [2023-08-26 14:36:49,184 INFO L119 LiptonReduction]: Number of co-enabled transitions 298540 [2023-08-26 14:37:03,067 INFO L134 LiptonReduction]: Checked pairs total: 917072 [2023-08-26 14:37:03,067 INFO L136 LiptonReduction]: Total number of compositions: 519 [2023-08-26 14:37:03,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:03,069 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:03,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:03,100 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:03,100 INFO L124 PetriNetUnfolderBase]: 22/265 cut-off events. [2023-08-26 14:37:03,100 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:37:03,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:03,100 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:03,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:03,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1778461880, now seen corresponding path program 1 times [2023-08-26 14:37:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:03,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415622241] [2023-08-26 14:37:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:03,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:03,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:03,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:03,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:03,144 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:03,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 14:37:03,144 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:03,145 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:03,145 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:03,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-26 14:37:03,277 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:03,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,523 INFO L124 PetriNetUnfolderBase]: 61/833 cut-off events. [2023-08-26 14:37:03,523 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:03,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 833 events. 61/833 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4178 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 722. Up to 14 conditions per place. [2023-08-26 14:37:03,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,561 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:03,561 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,561 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:03,750 INFO L124 PetriNetUnfolderBase]: 61/833 cut-off events. [2023-08-26 14:37:03,750 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:03,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 833 events. 61/833 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4178 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 722. Up to 14 conditions per place. [2023-08-26 14:37:03,861 INFO L119 LiptonReduction]: Number of co-enabled transitions 442500 [2023-08-26 14:37:19,901 INFO L134 LiptonReduction]: Checked pairs total: 1413117 [2023-08-26 14:37:19,902 INFO L136 LiptonReduction]: Total number of compositions: 619 [2023-08-26 14:37:19,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:19,904 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:19,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:19,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:19,954 INFO L124 PetriNetUnfolderBase]: 28/340 cut-off events. [2023-08-26 14:37:19,954 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:19,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:19,954 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:19,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:19,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash -749747567, now seen corresponding path program 1 times [2023-08-26 14:37:19,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:19,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156466920] [2023-08-26 14:37:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:19,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:19,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:19,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:19,996 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:19,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:19,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 14:37:19,996 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:19,997 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:19,997 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:19,997 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-26 14:37:20,192 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:20,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,497 INFO L124 PetriNetUnfolderBase]: 71/966 cut-off events. [2023-08-26 14:37:20,497 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:20,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 966 events. 71/966 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5071 event pairs, 0 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 859. Up to 16 conditions per place. [2023-08-26 14:37:20,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,547 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:20,547 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,547 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:20,830 INFO L124 PetriNetUnfolderBase]: 71/966 cut-off events. [2023-08-26 14:37:20,830 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:20,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 966 events. 71/966 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5071 event pairs, 0 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 859. Up to 16 conditions per place. [2023-08-26 14:37:20,964 INFO L119 LiptonReduction]: Number of co-enabled transitions 614544 [2023-08-26 14:37:38,760 INFO L134 LiptonReduction]: Checked pairs total: 2221831 [2023-08-26 14:37:38,760 INFO L136 LiptonReduction]: Total number of compositions: 694 [2023-08-26 14:37:38,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:38,762 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:38,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:38,830 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:38,830 INFO L124 PetriNetUnfolderBase]: 35/414 cut-off events. [2023-08-26 14:37:38,830 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:38,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:38,831 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:38,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:38,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1400340273, now seen corresponding path program 1 times [2023-08-26 14:37:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:38,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917220127] [2023-08-26 14:37:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:38,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:38,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:38,895 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:38,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:38,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 14:37:38,895 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:38,896 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:38,896 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:38,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-26 14:37:39,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:39,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:39,503 INFO L124 PetriNetUnfolderBase]: 81/1099 cut-off events. [2023-08-26 14:37:39,503 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:37:39,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1099 events. 81/1099 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5965 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1000. Up to 18 conditions per place. [2023-08-26 14:37:39,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:39,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:39,570 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:39,570 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:39,571 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:39,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:40,011 INFO L124 PetriNetUnfolderBase]: 81/1099 cut-off events. [2023-08-26 14:37:40,011 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:37:40,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1099 events. 81/1099 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5965 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1000. Up to 18 conditions per place. [2023-08-26 14:37:40,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 814672 [2023-08-26 14:38:00,075 INFO L134 LiptonReduction]: Checked pairs total: 2975726 [2023-08-26 14:38:00,075 INFO L136 LiptonReduction]: Total number of compositions: 799 [2023-08-26 14:38:00,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:38:00,078 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:38:00,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:38:00,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:38:00,147 INFO L124 PetriNetUnfolderBase]: 43/488 cut-off events. [2023-08-26 14:38:00,148 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:38:00,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:38:00,148 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:38:00,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:38:00,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:38:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1080453195, now seen corresponding path program 1 times [2023-08-26 14:38:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:38:00,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886684628] [2023-08-26 14:38:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:38:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:38:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:00,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:38:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:00,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:38:00,214 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:38:00,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:38:00,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 14:38:00,214 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:38:00,216 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:38:00,216 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:38:00,216 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-26 14:38:00,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:38:00,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:00,930 INFO L124 PetriNetUnfolderBase]: 91/1232 cut-off events. [2023-08-26 14:38:00,930 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:01,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1232 events. 91/1232 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6887 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1142. Up to 20 conditions per place. [2023-08-26 14:38:01,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:01,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:01,026 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:38:01,026 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:01,026 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:01,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:01,588 INFO L124 PetriNetUnfolderBase]: 91/1232 cut-off events. [2023-08-26 14:38:01,588 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:01,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1232 events. 91/1232 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6887 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1142. Up to 20 conditions per place. [2023-08-26 14:38:01,771 INFO L119 LiptonReduction]: Number of co-enabled transitions 1042884 [2023-08-26 14:38:25,162 INFO L134 LiptonReduction]: Checked pairs total: 3340549 [2023-08-26 14:38:25,162 INFO L136 LiptonReduction]: Total number of compositions: 891 [2023-08-26 14:38:25,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:38:25,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:38:25,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:38:25,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:38:25,317 INFO L124 PetriNetUnfolderBase]: 50/563 cut-off events. [2023-08-26 14:38:25,317 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:25,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:38:25,317 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:38:25,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:38:25,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:38:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1984222509, now seen corresponding path program 1 times [2023-08-26 14:38:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:38:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128835050] [2023-08-26 14:38:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:38:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:38:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:25,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:38:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:25,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:38:25,372 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:38:25,372 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:38:25,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 14:38:25,372 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:38:25,373 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:38:25,373 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:38:25,373 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-26 14:38:25,566 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:38:25,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,100 INFO L124 PetriNetUnfolderBase]: 101/1365 cut-off events. [2023-08-26 14:38:26,100 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:38:26,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1365 events. 101/1365 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7808 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 1285. Up to 22 conditions per place. [2023-08-26 14:38:26,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,197 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:38:26,197 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,197 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:26,708 INFO L124 PetriNetUnfolderBase]: 101/1365 cut-off events. [2023-08-26 14:38:26,708 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:38:26,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1365 events. 101/1365 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7808 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 1285. Up to 22 conditions per place. [2023-08-26 14:38:26,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 1299180 [2023-08-26 14:38:53,693 INFO L134 LiptonReduction]: Checked pairs total: 4740999 [2023-08-26 14:38:53,693 INFO L136 LiptonReduction]: Total number of compositions: 994 [2023-08-26 14:38:53,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:38:53,695 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:38:53,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:38:53,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:38:53,804 INFO L124 PetriNetUnfolderBase]: 57/637 cut-off events. [2023-08-26 14:38:53,805 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:38:53,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:38:53,805 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:38:53,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:38:53,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:38:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash 612160004, now seen corresponding path program 1 times [2023-08-26 14:38:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:38:53,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840816247] [2023-08-26 14:38:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:38:53,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:38:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:53,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:38:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:53,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:38:53,857 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:38:53,857 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:38:53,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 14:38:53,858 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:38:53,858 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:38:53,858 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:38:53,858 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-26 14:38:54,045 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:38:54,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:54,704 INFO L124 PetriNetUnfolderBase]: 111/1498 cut-off events. [2023-08-26 14:38:54,704 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:38:54,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 1498 events. 111/1498 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8664 event pairs, 0 based on Foata normal form. 0/922 useless extension candidates. Maximal degree in co-relation 1431. Up to 24 conditions per place. [2023-08-26 14:38:54,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:54,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:54,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:38:54,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:54,777 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:54,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:38:55,342 INFO L124 PetriNetUnfolderBase]: 111/1498 cut-off events. [2023-08-26 14:38:55,343 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:38:55,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 1498 events. 111/1498 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8664 event pairs, 0 based on Foata normal form. 0/922 useless extension candidates. Maximal degree in co-relation 1431. Up to 24 conditions per place. [2023-08-26 14:38:55,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 1583560 [2023-08-26 14:39:24,115 INFO L134 LiptonReduction]: Checked pairs total: 5228363 [2023-08-26 14:39:24,115 INFO L136 LiptonReduction]: Total number of compositions: 1080 [2023-08-26 14:39:24,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:39:24,117 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:39:24,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:39:24,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:39:24,266 INFO L124 PetriNetUnfolderBase]: 64/709 cut-off events. [2023-08-26 14:39:24,266 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:39:24,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:39:24,266 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:39:24,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:39:24,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:39:24,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1115287981, now seen corresponding path program 1 times [2023-08-26 14:39:24,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:39:24,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077993322] [2023-08-26 14:39:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:39:24,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:39:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:24,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:39:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:24,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:39:24,319 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:39:24,319 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:39:24,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 14:39:24,319 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:39:24,320 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:39:24,320 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:39:24,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-26 14:39:24,578 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:39:24,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:25,300 INFO L124 PetriNetUnfolderBase]: 121/1631 cut-off events. [2023-08-26 14:39:25,300 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:39:25,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 1631 events. 121/1631 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9552 event pairs, 0 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1578. Up to 26 conditions per place. [2023-08-26 14:39:25,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:25,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:25,445 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:39:25,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:25,445 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:25,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:26,113 INFO L124 PetriNetUnfolderBase]: 121/1631 cut-off events. [2023-08-26 14:39:26,113 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:39:26,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 1631 events. 121/1631 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9552 event pairs, 0 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1578. Up to 26 conditions per place. [2023-08-26 14:39:26,513 INFO L119 LiptonReduction]: Number of co-enabled transitions 1896024 [2023-08-26 14:39:58,046 INFO L134 LiptonReduction]: Checked pairs total: 6945934 [2023-08-26 14:39:58,047 INFO L136 LiptonReduction]: Total number of compositions: 1145 [2023-08-26 14:39:58,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:39:58,048 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:39:58,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:39:58,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:39:58,204 INFO L124 PetriNetUnfolderBase]: 70/785 cut-off events. [2023-08-26 14:39:58,204 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:39:58,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:39:58,204 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:39:58,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:39:58,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:39:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1462667872, now seen corresponding path program 1 times [2023-08-26 14:39:58,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:39:58,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311108667] [2023-08-26 14:39:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:39:58,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:39:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:58,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:39:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:58,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:39:58,265 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:39:58,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:39:58,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 14:39:58,266 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:39:58,266 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:39:58,266 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:39:58,266 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-26 14:39:58,491 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:39:58,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:39:59,357 INFO L124 PetriNetUnfolderBase]: 131/1764 cut-off events. [2023-08-26 14:39:59,357 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:39:59,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1764 events. 131/1764 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10445 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1726. Up to 28 conditions per place. [2023-08-26 14:39:59,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:39:59,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:39:59,479 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:39:59,480 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:39:59,480 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:39:59,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:00,418 INFO L124 PetriNetUnfolderBase]: 131/1764 cut-off events. [2023-08-26 14:40:00,419 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:40:00,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1764 events. 131/1764 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10445 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1726. Up to 28 conditions per place. [2023-08-26 14:40:00,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 2236572 [2023-08-26 14:40:35,867 INFO L134 LiptonReduction]: Checked pairs total: 7264451 [2023-08-26 14:40:35,867 INFO L136 LiptonReduction]: Total number of compositions: 1261 [2023-08-26 14:40:35,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:40:35,870 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:40:35,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:40:36,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:40:36,074 INFO L124 PetriNetUnfolderBase]: 79/868 cut-off events. [2023-08-26 14:40:36,074 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:40:36,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:40:36,074 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:40:36,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:40:36,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:40:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1411903617, now seen corresponding path program 1 times [2023-08-26 14:40:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:40:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229913518] [2023-08-26 14:40:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:40:36,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:40:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:36,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:40:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:36,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:40:36,155 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:40:36,155 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:40:36,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 14:40:36,155 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:40:36,156 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:40:36,156 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:40:36,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-26 14:40:36,432 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:40:36,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:37,499 INFO L124 PetriNetUnfolderBase]: 141/1897 cut-off events. [2023-08-26 14:40:37,499 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:40:37,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1897 events. 141/1897 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11365 event pairs, 0 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1875. Up to 30 conditions per place. [2023-08-26 14:40:37,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:37,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:37,703 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:40:37,703 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:37,703 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:37,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:38,733 INFO L124 PetriNetUnfolderBase]: 141/1897 cut-off events. [2023-08-26 14:40:38,734 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:40:38,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1897 events. 141/1897 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11365 event pairs, 0 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1875. Up to 30 conditions per place. [2023-08-26 14:40:39,346 INFO L119 LiptonReduction]: Number of co-enabled transitions 2605204 [2023-08-26 14:41:17,877 INFO L134 LiptonReduction]: Checked pairs total: 8433763 [2023-08-26 14:41:17,877 INFO L136 LiptonReduction]: Total number of compositions: 1361 [2023-08-26 14:41:17,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:41:17,879 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:41:17,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:41:18,175 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:41:18,175 INFO L124 PetriNetUnfolderBase]: 85/938 cut-off events. [2023-08-26 14:41:18,175 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:41:18,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:41:18,175 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:41:18,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:41:18,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:41:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash 452688669, now seen corresponding path program 1 times [2023-08-26 14:41:18,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:41:18,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342305267] [2023-08-26 14:41:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:41:18,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:41:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:41:18,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:41:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:41:18,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:41:18,241 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:41:18,241 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:41:18,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 14:41:18,241 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:41:18,241 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:41:18,241 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:41:18,241 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-26 14:41:18,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:41:18,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:19,894 INFO L124 PetriNetUnfolderBase]: 151/2030 cut-off events. [2023-08-26 14:41:19,894 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:41:20,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 2030 events. 151/2030 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12260 event pairs, 0 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2025. Up to 32 conditions per place. [2023-08-26 14:41:20,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:20,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:20,047 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:41:20,047 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:20,047 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:20,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:21,338 INFO L124 PetriNetUnfolderBase]: 151/2030 cut-off events. [2023-08-26 14:41:21,339 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:41:21,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 2030 events. 151/2030 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12260 event pairs, 0 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2025. Up to 32 conditions per place. [2023-08-26 14:41:22,139 INFO L119 LiptonReduction]: Number of co-enabled transitions 3001920 [2023-08-26 14:42:04,710 INFO L134 LiptonReduction]: Checked pairs total: 9756630 [2023-08-26 14:42:04,710 INFO L136 LiptonReduction]: Total number of compositions: 1494 [2023-08-26 14:42:04,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:42:04,712 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:42:04,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:42:04,997 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:42:04,997 INFO L124 PetriNetUnfolderBase]: 92/1011 cut-off events. [2023-08-26 14:42:04,997 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:42:04,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:42:04,997 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:42:04,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:42:04,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:42:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2009832909, now seen corresponding path program 1 times [2023-08-26 14:42:04,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:42:04,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442981991] [2023-08-26 14:42:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:42:04,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:42:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:05,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:42:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:05,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:42:05,069 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:42:05,069 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:42:05,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 14:42:05,069 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:42:05,069 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:42:05,070 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:42:05,070 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-26 14:42:05,364 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:42:05,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:06,938 INFO L124 PetriNetUnfolderBase]: 161/2163 cut-off events. [2023-08-26 14:42:06,938 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:42:07,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 2163 events. 161/2163 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 13219 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2176. Up to 34 conditions per place. [2023-08-26 14:42:07,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:07,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:07,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:42:07,134 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:07,135 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:07,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:08,761 INFO L124 PetriNetUnfolderBase]: 161/2163 cut-off events. [2023-08-26 14:42:08,761 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:42:08,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 2163 events. 161/2163 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 13219 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2176. Up to 34 conditions per place. [2023-08-26 14:42:09,614 INFO L119 LiptonReduction]: Number of co-enabled transitions 3426720 [2023-08-26 14:42:53,203 INFO L134 LiptonReduction]: Checked pairs total: 11031770 [2023-08-26 14:42:53,204 INFO L136 LiptonReduction]: Total number of compositions: 1534 [2023-08-26 14:42:53,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:42:53,207 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:42:53,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:42:53,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:42:53,546 INFO L124 PetriNetUnfolderBase]: 98/1081 cut-off events. [2023-08-26 14:42:53,546 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:42:53,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:42:53,546 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:42:53,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:42:53,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:42:53,547 INFO L85 PathProgramCache]: Analyzing trace with hash 475036223, now seen corresponding path program 1 times [2023-08-26 14:42:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:42:53,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34895366] [2023-08-26 14:42:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:42:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:42:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:53,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:42:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:53,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:42:53,643 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:42:53,643 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:42:53,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 14:42:53,644 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:42:53,644 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:42:53,644 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:42:53,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-26 14:42:53,927 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:42:54,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:55,888 INFO L124 PetriNetUnfolderBase]: 171/2296 cut-off events. [2023-08-26 14:42:55,888 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:42:56,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2296 events. 171/2296 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14095 event pairs, 0 based on Foata normal form. 0/1408 useless extension candidates. Maximal degree in co-relation 2328. Up to 36 conditions per place. [2023-08-26 14:42:56,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:56,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:56,103 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:42:56,103 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:56,103 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:56,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:42:57,795 INFO L124 PetriNetUnfolderBase]: 171/2296 cut-off events. [2023-08-26 14:42:57,795 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:42:57,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2296 events. 171/2296 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14095 event pairs, 0 based on Foata normal form. 0/1408 useless extension candidates. Maximal degree in co-relation 2328. Up to 36 conditions per place. [2023-08-26 14:42:58,789 INFO L119 LiptonReduction]: Number of co-enabled transitions 3879604 [2023-08-26 14:43:47,037 INFO L134 LiptonReduction]: Checked pairs total: 12662719 [2023-08-26 14:43:47,038 INFO L136 LiptonReduction]: Total number of compositions: 1634 [2023-08-26 14:43:47,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:43:47,040 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:43:47,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:43:47,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:43:47,443 INFO L124 PetriNetUnfolderBase]: 106/1158 cut-off events. [2023-08-26 14:43:47,443 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:43:47,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:43:47,443 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:43:47,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:43:47,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:43:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 71516106, now seen corresponding path program 1 times [2023-08-26 14:43:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:43:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501705665] [2023-08-26 14:43:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:43:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:43:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:47,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:43:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:47,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:43:47,514 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:43:47,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:43:47,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 14:43:47,514 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:43:47,515 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:43:47,515 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:43:47,515 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-26 14:43:47,791 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:43:47,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:49,800 INFO L124 PetriNetUnfolderBase]: 181/2429 cut-off events. [2023-08-26 14:43:49,801 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:43:50,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2655 conditions, 2429 events. 181/2429 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14949 event pairs, 0 based on Foata normal form. 0/1489 useless extension candidates. Maximal degree in co-relation 2481. Up to 38 conditions per place. [2023-08-26 14:43:50,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:50,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:50,135 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:43:50,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:50,136 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:50,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:52,066 INFO L124 PetriNetUnfolderBase]: 181/2429 cut-off events. [2023-08-26 14:43:52,066 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:43:52,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2655 conditions, 2429 events. 181/2429 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14949 event pairs, 0 based on Foata normal form. 0/1489 useless extension candidates. Maximal degree in co-relation 2481. Up to 38 conditions per place. [2023-08-26 14:43:53,102 INFO L119 LiptonReduction]: Number of co-enabled transitions 4360572 [2023-08-26 14:44:44,038 INFO L134 LiptonReduction]: Checked pairs total: 13991446 [2023-08-26 14:44:44,038 INFO L136 LiptonReduction]: Total number of compositions: 1740 [2023-08-26 14:44:44,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:44:44,041 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:44:44,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:44:44,440 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:44:44,440 INFO L124 PetriNetUnfolderBase]: 113/1233 cut-off events. [2023-08-26 14:44:44,440 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:44:44,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:44:44,440 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:44:44,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:44:44,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:44:44,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1993041859, now seen corresponding path program 1 times [2023-08-26 14:44:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:44:44,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220312680] [2023-08-26 14:44:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:44:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:44:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:44:44,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:44:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:44:44,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:44:44,521 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:44:44,521 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:44:44,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 14:44:44,521 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:44:44,522 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:44:44,522 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:44:44,522 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-26 14:44:44,918 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:44:44,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:47,007 INFO L124 PetriNetUnfolderBase]: 191/2562 cut-off events. [2023-08-26 14:44:47,008 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:44:47,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2562 events. 191/2562 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 15884 event pairs, 0 based on Foata normal form. 0/1570 useless extension candidates. Maximal degree in co-relation 2635. Up to 40 conditions per place. [2023-08-26 14:44:47,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:47,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:47,276 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:44:47,276 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:47,276 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:47,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:49,253 INFO L124 PetriNetUnfolderBase]: 191/2562 cut-off events. [2023-08-26 14:44:49,253 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:44:49,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2562 events. 191/2562 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 15884 event pairs, 0 based on Foata normal form. 0/1570 useless extension candidates. Maximal degree in co-relation 2635. Up to 40 conditions per place. [2023-08-26 14:44:50,456 INFO L119 LiptonReduction]: Number of co-enabled transitions 4869624 [2023-08-26 14:45:44,775 INFO L134 LiptonReduction]: Checked pairs total: 15674564 [2023-08-26 14:45:44,775 INFO L136 LiptonReduction]: Total number of compositions: 1850 [2023-08-26 14:45:44,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:45:44,777 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:45:44,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:45:45,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:45:45,277 INFO L124 PetriNetUnfolderBase]: 120/1306 cut-off events. [2023-08-26 14:45:45,278 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:45:45,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:45:45,278 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:45:45,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:45:45,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:45:45,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1717558992, now seen corresponding path program 1 times [2023-08-26 14:45:45,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:45:45,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105117586] [2023-08-26 14:45:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:45:45,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:45:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:45:45,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:45:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:45:45,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:45:45,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:45:45,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:45:45,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 14:45:45,359 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:45:45,359 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:45:45,359 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:45:45,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-26 14:45:45,833 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:45:45,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:48,144 INFO L124 PetriNetUnfolderBase]: 201/2695 cut-off events. [2023-08-26 14:45:48,145 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:45:48,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 2695 events. 201/2695 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16774 event pairs, 0 based on Foata normal form. 0/1651 useless extension candidates. Maximal degree in co-relation 2790. Up to 42 conditions per place. [2023-08-26 14:45:48,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:48,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:48,559 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:45:48,559 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:48,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:48,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:50,664 INFO L124 PetriNetUnfolderBase]: 201/2695 cut-off events. [2023-08-26 14:45:50,664 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:45:50,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 2695 events. 201/2695 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16774 event pairs, 0 based on Foata normal form. 0/1651 useless extension candidates. Maximal degree in co-relation 2790. Up to 42 conditions per place. [2023-08-26 14:45:51,849 INFO L119 LiptonReduction]: Number of co-enabled transitions 5406760 [2023-08-26 14:46:49,004 INFO L134 LiptonReduction]: Checked pairs total: 17012896 [2023-08-26 14:46:49,004 INFO L136 LiptonReduction]: Total number of compositions: 1932 [2023-08-26 14:46:49,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:46:49,006 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3149134a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:46:49,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:46:49,559 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:46:49,559 INFO L124 PetriNetUnfolderBase]: 127/1381 cut-off events. [2023-08-26 14:46:49,559 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:46:49,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:46:49,559 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:46:49,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:46:49,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:46:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1737430327, now seen corresponding path program 1 times [2023-08-26 14:46:49,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:46:49,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142988218] [2023-08-26 14:46:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:46:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:46:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:46:49,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:46:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:46:49,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:46:49,641 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:46:49,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:46:49,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 14:46:49,642 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:46:49,642 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:46:49,642 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:46:49,642 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-26 14:46:49,956 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:46:49,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:52,525 INFO L124 PetriNetUnfolderBase]: 211/2828 cut-off events. [2023-08-26 14:46:52,525 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:46:52,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 2828 events. 211/2828 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 17686 event pairs, 0 based on Foata normal form. 0/1732 useless extension candidates. Maximal degree in co-relation 2946. Up to 44 conditions per place. [2023-08-26 14:46:52,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:52,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:52,830 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:46:52,830 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:52,830 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:52,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:46:55,315 INFO L124 PetriNetUnfolderBase]: 211/2828 cut-off events. [2023-08-26 14:46:55,316 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:46:55,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 2828 events. 211/2828 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 17686 event pairs, 0 based on Foata normal form. 0/1732 useless extension candidates. Maximal degree in co-relation 2946. Up to 44 conditions per place. [2023-08-26 14:46:56,602 INFO L119 LiptonReduction]: Number of co-enabled transitions 5971980 Received shutdown request... [2023-08-26 14:47:40,845 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 [2023-08-26 14:47:42,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-26 14:47:42,190 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-26 14:47:42,191 INFO L158 Benchmark]: Toolchain (without parser) took 689454.79ms. Allocated memory was 383.8MB in the beginning and 9.4GB in the end (delta: 9.0GB). Free memory was 358.2MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.6GB. Max. memory is 16.0GB. [2023-08-26 14:47:42,191 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 383.8MB. Free memory is still 359.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 14:47:42,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.04ms. Allocated memory is still 383.8MB. Free memory was 358.2MB in the beginning and 337.6MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 14:47:42,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.63ms. Allocated memory is still 383.8MB. Free memory was 337.6MB in the beginning and 335.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:47:42,191 INFO L158 Benchmark]: Boogie Preprocessor took 30.64ms. Allocated memory is still 383.8MB. Free memory was 335.1MB in the beginning and 333.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:47:42,192 INFO L158 Benchmark]: RCFGBuilder took 767.96ms. Allocated memory is still 383.8MB. Free memory was 333.4MB in the beginning and 330.5MB in the end (delta: 2.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.0GB. [2023-08-26 14:47:42,192 INFO L158 Benchmark]: TraceAbstraction took 688133.22ms. Allocated memory was 383.8MB in the beginning and 9.4GB in the end (delta: 9.0GB). Free memory was 330.5MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.6GB. Max. memory is 16.0GB. [2023-08-26 14:47:42,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 383.8MB. Free memory is still 359.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 466.04ms. Allocated memory is still 383.8MB. Free memory was 358.2MB in the beginning and 337.6MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.63ms. Allocated memory is still 383.8MB. Free memory was 337.6MB in the beginning and 335.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.64ms. Allocated memory is still 383.8MB. Free memory was 335.1MB in the beginning and 333.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 767.96ms. Allocated memory is still 383.8MB. Free memory was 333.4MB in the beginning and 330.5MB in the end (delta: 2.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.0GB. * TraceAbstraction took 688133.22ms. Allocated memory was 383.8MB in the beginning and 9.4GB in the end (delta: 9.0GB). Free memory was 330.5MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 149 PlacesBefore, 64 PlacesAfterwards, 156 TransitionsBefore, 68 TransitionsAfterwards, 3540 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 129 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 171 TotalNumberOfCompositions, 5664 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4174, independent: 3915, independent conditional: 0, independent unconditional: 3915, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1825, independent: 1754, independent conditional: 0, independent unconditional: 1754, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4174, independent: 2161, independent conditional: 0, independent unconditional: 2161, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1825, unknown conditional: 0, unknown unconditional: 1825] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 261 PlacesBefore, 135 PlacesAfterwards, 275 TransitionsBefore, 144 TransitionsAfterwards, 35164 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 173 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 5 ChoiceCompositions, 229 TotalNumberOfCompositions, 103486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40429, independent: 39542, independent conditional: 0, independent unconditional: 39542, dependent: 887, dependent conditional: 0, dependent unconditional: 887, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 17394, independent: 17159, independent conditional: 0, independent unconditional: 17159, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40429, independent: 22383, independent conditional: 0, independent unconditional: 22383, dependent: 652, dependent conditional: 0, dependent unconditional: 652, unknown: 17394, unknown conditional: 0, unknown unconditional: 17394] , Statistics on independence cache: Total cache size (in pairs): 2116, Positive cache size: 2018, Positive conditional cache size: 0, Positive unconditional cache size: 2018, Negative cache size: 98, Negative conditional cache size: 0, Negative unconditional cache size: 98, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 373 PlacesBefore, 198 PlacesAfterwards, 394 TransitionsBefore, 212 TransitionsAfterwards, 94872 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 250 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 327 TotalNumberOfCompositions, 291122 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110732, independent: 109406, independent conditional: 0, independent unconditional: 109406, dependent: 1326, dependent conditional: 0, dependent unconditional: 1326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 46834, independent: 46512, independent conditional: 0, independent unconditional: 46512, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 110732, independent: 62894, independent conditional: 0, independent unconditional: 62894, dependent: 1004, dependent conditional: 0, dependent unconditional: 1004, unknown: 46834, unknown conditional: 0, unknown unconditional: 46834] , Statistics on independence cache: Total cache size (in pairs): 5905, Positive cache size: 5771, Positive conditional cache size: 0, Positive unconditional cache size: 5771, Negative cache size: 134, Negative conditional cache size: 0, Negative unconditional cache size: 134, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 485 PlacesBefore, 263 PlacesAfterwards, 513 TransitionsBefore, 282 TransitionsAfterwards, 182664 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 319 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 68 ConcurrentYvCompositions, 9 ChoiceCompositions, 417 TotalNumberOfCompositions, 580822 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 191202, independent: 189393, independent conditional: 0, independent unconditional: 189393, dependent: 1809, dependent conditional: 0, dependent unconditional: 1809, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 88491, independent: 88039, independent conditional: 0, independent unconditional: 88039, dependent: 452, dependent conditional: 0, dependent unconditional: 452, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 191202, independent: 101354, independent conditional: 0, independent unconditional: 101354, dependent: 1357, dependent conditional: 0, dependent unconditional: 1357, unknown: 88491, unknown conditional: 0, unknown unconditional: 88491] , Statistics on independence cache: Total cache size (in pairs): 9753, Positive cache size: 9567, Positive conditional cache size: 0, Positive unconditional cache size: 9567, Negative cache size: 186, Negative conditional cache size: 0, Negative unconditional cache size: 186, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 597 PlacesBefore, 324 PlacesAfterwards, 632 TransitionsBefore, 348 TransitionsAfterwards, 298540 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 411 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 76 ConcurrentYvCompositions, 11 ChoiceCompositions, 519 TotalNumberOfCompositions, 917072 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 285243, independent: 283070, independent conditional: 0, independent unconditional: 283070, dependent: 2173, dependent conditional: 0, dependent unconditional: 2173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 142696, independent: 142188, independent conditional: 0, independent unconditional: 142188, dependent: 508, dependent conditional: 0, dependent unconditional: 508, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 285243, independent: 140882, independent conditional: 0, independent unconditional: 140882, dependent: 1665, dependent conditional: 0, dependent unconditional: 1665, unknown: 142696, unknown conditional: 0, unknown unconditional: 142696] , Statistics on independence cache: Total cache size (in pairs): 13997, Positive cache size: 13785, Positive conditional cache size: 0, Positive unconditional cache size: 13785, Negative cache size: 212, Negative conditional cache size: 0, Negative unconditional cache size: 212, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3s, 709 PlacesBefore, 388 PlacesAfterwards, 751 TransitionsBefore, 417 TransitionsAfterwards, 442500 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 489 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 96 ConcurrentYvCompositions, 13 ChoiceCompositions, 619 TotalNumberOfCompositions, 1413117 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 386269, independent: 383597, independent conditional: 0, independent unconditional: 383597, dependent: 2672, dependent conditional: 0, dependent unconditional: 2672, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 205907, independent: 205184, independent conditional: 0, independent unconditional: 205184, dependent: 723, dependent conditional: 0, dependent unconditional: 723, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 386269, independent: 178413, independent conditional: 0, independent unconditional: 178413, dependent: 1949, dependent conditional: 0, dependent unconditional: 1949, unknown: 205907, unknown conditional: 0, unknown unconditional: 205907] , Statistics on independence cache: Total cache size (in pairs): 13466, Positive cache size: 13126, Positive conditional cache size: 0, Positive unconditional cache size: 13126, Negative cache size: 340, Negative conditional cache size: 0, Negative unconditional cache size: 340, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.2s, 821 PlacesBefore, 451 PlacesAfterwards, 870 TransitionsBefore, 485 TransitionsAfterwards, 614544 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 546 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 112 ConcurrentYvCompositions, 15 ChoiceCompositions, 694 TotalNumberOfCompositions, 2221831 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 639418, independent: 635687, independent conditional: 0, independent unconditional: 635687, dependent: 3731, dependent conditional: 0, dependent unconditional: 3731, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 300611, independent: 299802, independent conditional: 0, independent unconditional: 299802, dependent: 809, dependent conditional: 0, dependent unconditional: 809, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639418, independent: 335885, independent conditional: 0, independent unconditional: 335885, dependent: 2922, dependent conditional: 0, dependent unconditional: 2922, unknown: 300611, unknown conditional: 0, unknown unconditional: 300611] , Statistics on independence cache: Total cache size (in pairs): 34132, Positive cache size: 33835, Positive conditional cache size: 0, Positive unconditional cache size: 33835, Negative cache size: 297, Negative conditional cache size: 0, Negative unconditional cache size: 297, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.5s, 933 PlacesBefore, 514 PlacesAfterwards, 989 TransitionsBefore, 553 TransitionsAfterwards, 814672 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 637 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 124 ConcurrentYvCompositions, 17 ChoiceCompositions, 799 TotalNumberOfCompositions, 2975726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 771171, independent: 766888, independent conditional: 0, independent unconditional: 766888, dependent: 4283, dependent conditional: 0, dependent unconditional: 4283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 395327, independent: 394430, independent conditional: 0, independent unconditional: 394430, dependent: 897, dependent conditional: 0, dependent unconditional: 897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 771171, independent: 372458, independent conditional: 0, independent unconditional: 372458, dependent: 3386, dependent conditional: 0, dependent unconditional: 3386, unknown: 395327, unknown conditional: 0, unknown unconditional: 395327] , Statistics on independence cache: Total cache size (in pairs): 40323, Positive cache size: 39982, Positive conditional cache size: 0, Positive unconditional cache size: 39982, Negative cache size: 341, Negative conditional cache size: 0, Negative unconditional cache size: 341, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1s, 1045 PlacesBefore, 577 PlacesAfterwards, 1108 TransitionsBefore, 621 TransitionsAfterwards, 1042884 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 712 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 139 ConcurrentYvCompositions, 19 ChoiceCompositions, 891 TotalNumberOfCompositions, 3340549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 862508, independent: 858496, independent conditional: 0, independent unconditional: 858496, dependent: 4012, dependent conditional: 0, dependent unconditional: 4012, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 500733, independent: 499899, independent conditional: 0, independent unconditional: 499899, dependent: 834, dependent conditional: 0, dependent unconditional: 834, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 862508, independent: 358597, independent conditional: 0, independent unconditional: 358597, dependent: 3178, dependent conditional: 0, dependent unconditional: 3178, unknown: 500733, unknown conditional: 0, unknown unconditional: 500733] , Statistics on independence cache: Total cache size (in pairs): 49215, Positive cache size: 48831, Positive conditional cache size: 0, Positive unconditional cache size: 48831, Negative cache size: 384, Negative conditional cache size: 0, Negative unconditional cache size: 384, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.5s, 1157 PlacesBefore, 641 PlacesAfterwards, 1227 TransitionsBefore, 690 TransitionsAfterwards, 1299180 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 795 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 157 ConcurrentYvCompositions, 21 ChoiceCompositions, 994 TotalNumberOfCompositions, 4740999 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1263979, independent: 1258641, independent conditional: 0, independent unconditional: 1258641, dependent: 5338, dependent conditional: 0, dependent unconditional: 5338, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 628418, independent: 627307, independent conditional: 0, independent unconditional: 627307, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1263979, independent: 631334, independent conditional: 0, independent unconditional: 631334, dependent: 4227, dependent conditional: 0, dependent unconditional: 4227, unknown: 628418, unknown conditional: 0, unknown unconditional: 628418] , Statistics on independence cache: Total cache size (in pairs): 62470, Positive cache size: 62044, Positive conditional cache size: 0, Positive unconditional cache size: 62044, Negative cache size: 426, Negative conditional cache size: 0, Negative unconditional cache size: 426, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3s, 1269 PlacesBefore, 702 PlacesAfterwards, 1346 TransitionsBefore, 756 TransitionsAfterwards, 1583560 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 873 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 163 ConcurrentYvCompositions, 23 ChoiceCompositions, 1080 TotalNumberOfCompositions, 5228363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1461890, independent: 1456833, independent conditional: 0, independent unconditional: 1456833, dependent: 5057, dependent conditional: 0, dependent unconditional: 5057, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 727346, independent: 725905, independent conditional: 0, independent unconditional: 725905, dependent: 1441, dependent conditional: 0, dependent unconditional: 1441, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1461890, independent: 730928, independent conditional: 0, independent unconditional: 730928, dependent: 3616, dependent conditional: 0, dependent unconditional: 3616, unknown: 727346, unknown conditional: 0, unknown unconditional: 727346] , Statistics on independence cache: Total cache size (in pairs): 44586, Positive cache size: 44115, Positive conditional cache size: 0, Positive unconditional cache size: 44115, Negative cache size: 471, Negative conditional cache size: 0, Negative unconditional cache size: 471, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.6s, 1381 PlacesBefore, 767 PlacesAfterwards, 1465 TransitionsBefore, 826 TransitionsAfterwards, 1896024 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 904 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 195 ConcurrentYvCompositions, 25 ChoiceCompositions, 1145 TotalNumberOfCompositions, 6945934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1773812, independent: 1767321, independent conditional: 0, independent unconditional: 1767321, dependent: 6491, dependent conditional: 0, dependent unconditional: 6491, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 913102, independent: 911636, independent conditional: 0, independent unconditional: 911636, dependent: 1466, dependent conditional: 0, dependent unconditional: 1466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1773812, independent: 855685, independent conditional: 0, independent unconditional: 855685, dependent: 5025, dependent conditional: 0, dependent unconditional: 5025, unknown: 913102, unknown conditional: 0, unknown unconditional: 913102] , Statistics on independence cache: Total cache size (in pairs): 94816, Positive cache size: 94297, Positive conditional cache size: 0, Positive unconditional cache size: 94297, Negative cache size: 519, Negative conditional cache size: 0, Negative unconditional cache size: 519, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.4s, 1493 PlacesBefore, 832 PlacesAfterwards, 1584 TransitionsBefore, 896 TransitionsAfterwards, 2236572 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1015 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 1261 TotalNumberOfCompositions, 7264451 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1842069, independent: 1836195, independent conditional: 0, independent unconditional: 1836195, dependent: 5874, dependent conditional: 0, dependent unconditional: 5874, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1058111, independent: 1056779, independent conditional: 0, independent unconditional: 1056779, dependent: 1332, dependent conditional: 0, dependent unconditional: 1332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1842069, independent: 779416, independent conditional: 0, independent unconditional: 779416, dependent: 4542, dependent conditional: 0, dependent unconditional: 4542, unknown: 1058111, unknown conditional: 0, unknown unconditional: 1058111] , Statistics on independence cache: Total cache size (in pairs): 91832, Positive cache size: 91272, Positive conditional cache size: 0, Positive unconditional cache size: 91272, Negative cache size: 560, Negative conditional cache size: 0, Negative unconditional cache size: 560, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.2s, 1605 PlacesBefore, 894 PlacesAfterwards, 1703 TransitionsBefore, 963 TransitionsAfterwards, 2605204 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1095 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 1361 TotalNumberOfCompositions, 8433763 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2486154, independent: 2479823, independent conditional: 0, independent unconditional: 2479823, dependent: 6331, dependent conditional: 0, dependent unconditional: 6331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1233580, independent: 1231974, independent conditional: 0, independent unconditional: 1231974, dependent: 1606, dependent conditional: 0, dependent unconditional: 1606, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2486154, independent: 1247849, independent conditional: 0, independent unconditional: 1247849, dependent: 4725, dependent conditional: 0, dependent unconditional: 4725, unknown: 1233580, unknown conditional: 0, unknown unconditional: 1233580] , Statistics on independence cache: Total cache size (in pairs): 105754, Positive cache size: 105094, Positive conditional cache size: 0, Positive unconditional cache size: 105094, Negative cache size: 660, Negative conditional cache size: 0, Negative unconditional cache size: 660, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.7s, 1717 PlacesBefore, 958 PlacesAfterwards, 1822 TransitionsBefore, 1032 TransitionsAfterwards, 3001920 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1206 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 236 ConcurrentYvCompositions, 31 ChoiceCompositions, 1494 TotalNumberOfCompositions, 9756630 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2698983, independent: 2692241, independent conditional: 0, independent unconditional: 2692241, dependent: 6742, dependent conditional: 0, dependent unconditional: 6742, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1383634, independent: 1381803, independent conditional: 0, independent unconditional: 1381803, dependent: 1831, dependent conditional: 0, dependent unconditional: 1831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2698983, independent: 1310438, independent conditional: 0, independent unconditional: 1310438, dependent: 4911, dependent conditional: 0, dependent unconditional: 4911, unknown: 1383634, unknown conditional: 0, unknown unconditional: 1383634] , Statistics on independence cache: Total cache size (in pairs): 78086, Positive cache size: 77299, Positive conditional cache size: 0, Positive unconditional cache size: 77299, Negative cache size: 787, Negative conditional cache size: 0, Negative unconditional cache size: 787, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.1s, 1829 PlacesBefore, 1019 PlacesAfterwards, 1941 TransitionsBefore, 1098 TransitionsAfterwards, 3426720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1228 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1534 TotalNumberOfCompositions, 11031770 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2816769, independent: 2809589, independent conditional: 0, independent unconditional: 2809589, dependent: 7180, dependent conditional: 0, dependent unconditional: 7180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1652246, independent: 1650445, independent conditional: 0, independent unconditional: 1650445, dependent: 1801, dependent conditional: 0, dependent unconditional: 1801, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2816769, independent: 1159144, independent conditional: 0, independent unconditional: 1159144, dependent: 5379, dependent conditional: 0, dependent unconditional: 5379, unknown: 1652246, unknown conditional: 0, unknown unconditional: 1652246] , Statistics on independence cache: Total cache size (in pairs): 166515, Positive cache size: 165825, Positive conditional cache size: 0, Positive unconditional cache size: 165825, Negative cache size: 690, Negative conditional cache size: 0, Negative unconditional cache size: 690, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.9s, 1941 PlacesBefore, 1083 PlacesAfterwards, 2060 TransitionsBefore, 1167 TransitionsAfterwards, 3879604 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1320 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1634 TotalNumberOfCompositions, 12662719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3095076, independent: 3087333, independent conditional: 0, independent unconditional: 3087333, dependent: 7743, dependent conditional: 0, dependent unconditional: 7743, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1856021, independent: 1854429, independent conditional: 0, independent unconditional: 1854429, dependent: 1592, dependent conditional: 0, dependent unconditional: 1592, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3095076, independent: 1232904, independent conditional: 0, independent unconditional: 1232904, dependent: 6151, dependent conditional: 0, dependent unconditional: 6151, unknown: 1856021, unknown conditional: 0, unknown unconditional: 1856021] , Statistics on independence cache: Total cache size (in pairs): 186967, Positive cache size: 186235, Positive conditional cache size: 0, Positive unconditional cache size: 186235, Negative cache size: 732, Negative conditional cache size: 0, Negative unconditional cache size: 732, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.9s, 2053 PlacesBefore, 1145 PlacesAfterwards, 2179 TransitionsBefore, 1234 TransitionsAfterwards, 4360572 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1398 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 284 ConcurrentYvCompositions, 37 ChoiceCompositions, 1740 TotalNumberOfCompositions, 13991446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3544600, independent: 3536562, independent conditional: 0, independent unconditional: 3536562, dependent: 8038, dependent conditional: 0, dependent unconditional: 8038, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2085692, independent: 2083700, independent conditional: 0, independent unconditional: 2083700, dependent: 1992, dependent conditional: 0, dependent unconditional: 1992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3544600, independent: 1452862, independent conditional: 0, independent unconditional: 1452862, dependent: 6046, dependent conditional: 0, dependent unconditional: 6046, unknown: 2085692, unknown conditional: 0, unknown unconditional: 2085692] , Statistics on independence cache: Total cache size (in pairs): 205203, Positive cache size: 204430, Positive conditional cache size: 0, Positive unconditional cache size: 204430, Negative cache size: 773, Negative conditional cache size: 0, Negative unconditional cache size: 773, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.5s, 2165 PlacesBefore, 1209 PlacesAfterwards, 2298 TransitionsBefore, 1303 TransitionsAfterwards, 4869624 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1502 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 288 ConcurrentYvCompositions, 39 ChoiceCompositions, 1850 TotalNumberOfCompositions, 15674564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3900667, independent: 3892150, independent conditional: 0, independent unconditional: 3892150, dependent: 8517, dependent conditional: 0, dependent unconditional: 8517, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2326986, independent: 2325282, independent conditional: 0, independent unconditional: 2325282, dependent: 1704, dependent conditional: 0, dependent unconditional: 1704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3900667, independent: 1566868, independent conditional: 0, independent unconditional: 1566868, dependent: 6813, dependent conditional: 0, dependent unconditional: 6813, unknown: 2326986, unknown conditional: 0, unknown unconditional: 2326986] , Statistics on independence cache: Total cache size (in pairs): 223945, Positive cache size: 223129, Positive conditional cache size: 0, Positive unconditional cache size: 223129, Negative cache size: 816, Negative conditional cache size: 0, Negative unconditional cache size: 816, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.4s, 2277 PlacesBefore, 1271 PlacesAfterwards, 2417 TransitionsBefore, 1370 TransitionsAfterwards, 5406760 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1566 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 304 ConcurrentYvCompositions, 41 ChoiceCompositions, 1932 TotalNumberOfCompositions, 17012896 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4105887, independent: 4097138, independent conditional: 0, independent unconditional: 4097138, dependent: 8749, dependent conditional: 0, dependent unconditional: 8749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2385618, independent: 2383480, independent conditional: 0, independent unconditional: 2383480, dependent: 2138, dependent conditional: 0, dependent unconditional: 2138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4105887, independent: 1713658, independent conditional: 0, independent unconditional: 1713658, dependent: 6611, dependent conditional: 0, dependent unconditional: 6611, unknown: 2385618, unknown conditional: 0, unknown unconditional: 2385618] , Statistics on independence cache: Total cache size (in pairs): 56884, Positive cache size: 55666, Positive conditional cache size: 0, Positive unconditional cache size: 55666, Negative cache size: 1218, Negative conditional cache size: 0, Negative unconditional cache size: 1218, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 2389 places, 2536 transitions, 5597 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 2389 places, 2536 transitions, 5597 flow and 2633172 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while executing Executor. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown