/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --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-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m
[2023-12-05 21:10:31,695 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-05 21:10:31,733 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-NoLbe.epf
[2023-12-05 21:10:31,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-05 21:10:31,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-05 21:10:31,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-05 21:10:31,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-05 21:10:31,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-05 21:10:31,751 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-05 21:10:31,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-05 21:10:31,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-05 21:10:31,751 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-05 21:10:31,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-12-05 21:10:31,752 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-05 21:10:31,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-05 21:10:31,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-05 21:10:31,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-05 21:10:31,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-05 21:10:31,753 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-05 21:10:31,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-05 21:10:31,753 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-05 21:10:31,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-05 21:10:31,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-05 21:10:31,754 INFO L153 SettingsManager]: * To the following directory=./dump/
[2023-12-05 21:10:31,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-05 21:10:31,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-05 21:10:31,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-05 21:10:31,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-05 21:10:31,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-05 21:10:31,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-12-05 21:10:31,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-05 21:10:31,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-05 21:10:31,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-05 21:10:31,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true
[2023-12-05 21:10:31,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-05 21:10:31,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-05 21:10:31,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-05 21:10:31,944 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-05 21:10:31,945 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-05 21:10:31,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i
[2023-12-05 21:10:32,967 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-05 21:10:33,183 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-05 21:10:33,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i
[2023-12-05 21:10:33,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6ac1c5/a454bb14081f4d929382f64a8403e239/FLAG0d67fb8ce
[2023-12-05 21:10:33,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6ac1c5/a454bb14081f4d929382f64a8403e239
[2023-12-05 21:10:33,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-05 21:10:33,209 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-05 21:10:33,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-05 21:10:33,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-05 21:10:33,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-05 21:10:33,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1ffb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33, skipping insertion in model container
[2023-12-05 21:10:33,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,251 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-05 21:10:33,527 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-05 21:10:33,541 INFO L202 MainTranslator]: Completed pre-run
[2023-12-05 21:10:33,606 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-05 21:10:33,631 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-12-05 21:10:33,632 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-12-05 21:10:33,637 INFO L206 MainTranslator]: Completed translation
[2023-12-05 21:10:33,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33 WrapperNode
[2023-12-05 21:10:33,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-05 21:10:33,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-05 21:10:33,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-05 21:10:33,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-05 21:10:33,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,699 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133
[2023-12-05 21:10:33,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-05 21:10:33,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-05 21:10:33,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-05 21:10:33,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-05 21:10:33,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-05 21:10:33,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-05 21:10:33,747 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-05 21:10:33,747 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-05 21:10:33,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (1/1) ...
[2023-12-05 21:10:33,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-05 21:10:33,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-05 21:10:33,771 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)
[2023-12-05 21:10:33,776 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
[2023-12-05 21:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-12-05 21:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-12-05 21:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-05 21:10:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-05 21:10:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-05 21:10:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2023-12-05 21:10:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2023-12-05 21:10:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2023-12-05 21:10:33,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2023-12-05 21:10:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-12-05 21:10:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-12-05 21:10:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-05 21:10:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-05 21:10:33,808 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-12-05 21:10:33,899 INFO L241 CfgBuilder]: Building ICFG
[2023-12-05 21:10:33,901 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-05 21:10:34,099 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-05 21:10:34,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-05 21:10:34,236 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-05 21:10:34,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:10:34 BoogieIcfgContainer
[2023-12-05 21:10:34,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-05 21:10:34,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-05 21:10:34,241 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-05 21:10:34,243 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-05 21:10:34,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:10:33" (1/3) ...
[2023-12-05 21:10:34,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b0749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:10:34, skipping insertion in model container
[2023-12-05 21:10:34,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:10:33" (2/3) ...
[2023-12-05 21:10:34,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479b0749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:10:34, skipping insertion in model container
[2023-12-05 21:10:34,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:10:34" (3/3) ...
[2023-12-05 21:10:34,246 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_power.oepc_pso.oepc_rmo.oepc.i
[2023-12-05 21:10:34,258 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-05 21:10:34,258 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2023-12-05 21:10:34,258 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-12-05 21:10:34,309 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-12-05 21:10:34,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 96 transitions, 200 flow
[2023-12-05 21:10:34,382 INFO L124 PetriNetUnfolderBase]: 3/94 cut-off events.
[2023-12-05 21:10:34,382 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-12-05 21:10:34,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 3/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place.
[2023-12-05 21:10:34,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 96 transitions, 200 flow
[2023-12-05 21:10:34,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 50 transitions, 103 flow
[2023-12-05 21:10:34,401 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-05 21:10:34,406 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@69e68614, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-05 21:10:34,406 INFO L363 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-12-05 21:10:34,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-12-05 21:10:34,415 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events.
[2023-12-05 21:10:34,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-12-05 21:10:34,415 INFO L225 CegarLoopForPetriNet]: Found error trace
[2023-12-05 21:10:34,416 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-05 21:10:34,416 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2023-12-05 21:10:34,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-05 21:10:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash -297854946, now seen corresponding path program 1 times
[2023-12-05 21:10:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-05 21:10:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362730715]
[2023-12-05 21:10:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-05 21:10:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-05 21:10:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-05 21:10:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-05 21:10:34,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-05 21:10:34,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362730715]
[2023-12-05 21:10:34,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362730715] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-05 21:10:34,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-05 21:10:34,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-05 21:10:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992696990]
[2023-12-05 21:10:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-05 21:10:34,640 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-05 21:10:34,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-05 21:10:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-05 21:10:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-05 21:10:34,667 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 96
[2023-12-05 21:10:34,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-12-05 21:10:34,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 96
[2023-12-05 21:10:34,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-12-05 21:10:34,711 INFO L124 PetriNetUnfolderBase]: 4/65 cut-off events.
[2023-12-05 21:10:34,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-12-05 21:10:34,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 65 events. 4/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 4 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 42. Up to 16 conditions per place.
[2023-12-05 21:10:34,713 INFO L140 encePairwiseOnDemand]: 94/96 looper letters, 11 selfloop transitions, 1 changer transitions 0/49 dead transitions.
[2023-12-05 21:10:34,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 125 flow
[2023-12-05 21:10:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-12-05 21:10:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-12-05 21:10:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions.
[2023-12-05 21:10:34,726 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7743055555555556
[2023-12-05 21:10:34,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions.
[2023-12-05 21:10:34,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions.
[2023-12-05 21:10:34,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-12-05 21:10:34,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions.
[2023-12-05 21:10:34,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,742 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places.
[2023-12-05 21:10:34,743 INFO L500 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 125 flow
[2023-12-05 21:10:34,743 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,743 INFO L225 CegarLoopForPetriNet]: Found error trace
[2023-12-05 21:10:34,743 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-05 21:10:34,744 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-05 21:10:34,744 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2023-12-05 21:10:34,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-05 21:10:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash -297854945, now seen corresponding path program 1 times
[2023-12-05 21:10:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-05 21:10:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240753807]
[2023-12-05 21:10:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-05 21:10:34,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-05 21:10:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-05 21:10:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-05 21:10:34,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-05 21:10:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240753807]
[2023-12-05 21:10:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240753807] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-05 21:10:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-05 21:10:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-05 21:10:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910416937]
[2023-12-05 21:10:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-05 21:10:34,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-05 21:10:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-05 21:10:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-05 21:10:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-05 21:10:34,951 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 96
[2023-12-05 21:10:34,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-12-05 21:10:34,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 96
[2023-12-05 21:10:34,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-12-05 21:10:34,976 INFO L124 PetriNetUnfolderBase]: 6/72 cut-off events.
[2023-12-05 21:10:34,977 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2023-12-05 21:10:34,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 72 events. 6/72 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 6 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 66. Up to 17 conditions per place.
[2023-12-05 21:10:34,977 INFO L140 encePairwiseOnDemand]: 94/96 looper letters, 9 selfloop transitions, 1 changer transitions 0/48 dead transitions.
[2023-12-05 21:10:34,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 141 flow
[2023-12-05 21:10:34,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-12-05 21:10:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-12-05 21:10:34,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions.
[2023-12-05 21:10:34,992 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7881944444444444
[2023-12-05 21:10:34,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions.
[2023-12-05 21:10:34,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions.
[2023-12-05 21:10:34,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-12-05 21:10:34,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions.
[2023-12-05 21:10:34,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,995 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places.
[2023-12-05 21:10:34,995 INFO L500 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 141 flow
[2023-12-05 21:10:34,996 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:34,996 INFO L225 CegarLoopForPetriNet]: Found error trace
[2023-12-05 21:10:34,996 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-05 21:10:34,996 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-05 21:10:34,997 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2023-12-05 21:10:34,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-05 21:10:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1565151875, now seen corresponding path program 1 times
[2023-12-05 21:10:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-05 21:10:34,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59708871]
[2023-12-05 21:10:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-05 21:10:35,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-05 21:10:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-05 21:10:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-05 21:10:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-05 21:10:35,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59708871]
[2023-12-05 21:10:35,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59708871] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-05 21:10:35,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-05 21:10:35,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-05 21:10:35,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165064594]
[2023-12-05 21:10:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-05 21:10:35,053 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-05 21:10:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-05 21:10:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-05 21:10:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-05 21:10:35,054 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 96
[2023-12-05 21:10:35,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-12-05 21:10:35,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 96
[2023-12-05 21:10:35,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-12-05 21:10:35,080 INFO L124 PetriNetUnfolderBase]: 4/59 cut-off events.
[2023-12-05 21:10:35,080 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES.
[2023-12-05 21:10:35,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 59 events. 4/59 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 3/62 useless extension candidates. Maximal degree in co-relation 58. Up to 15 conditions per place.
[2023-12-05 21:10:35,112 INFO L140 encePairwiseOnDemand]: 94/96 looper letters, 12 selfloop transitions, 1 changer transitions 0/49 dead transitions.
[2023-12-05 21:10:35,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 175 flow
[2023-12-05 21:10:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-12-05 21:10:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-12-05 21:10:35,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions.
[2023-12-05 21:10:35,115 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778
[2023-12-05 21:10:35,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions.
[2023-12-05 21:10:35,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions.
[2023-12-05 21:10:35,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-12-05 21:10:35,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions.
[2023-12-05 21:10:35,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,118 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places.
[2023-12-05 21:10:35,118 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 175 flow
[2023-12-05 21:10:35,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,118 INFO L225 CegarLoopForPetriNet]: Found error trace
[2023-12-05 21:10:35,118 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-05 21:10:35,118 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-05 21:10:35,119 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2023-12-05 21:10:35,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-05 21:10:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1565151874, now seen corresponding path program 1 times
[2023-12-05 21:10:35,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-05 21:10:35,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519435972]
[2023-12-05 21:10:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-05 21:10:35,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-05 21:10:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-05 21:10:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-05 21:10:35,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-05 21:10:35,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519435972]
[2023-12-05 21:10:35,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519435972] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-05 21:10:35,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-05 21:10:35,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-05 21:10:35,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346512501]
[2023-12-05 21:10:35,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-05 21:10:35,222 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-05 21:10:35,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-05 21:10:35,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-05 21:10:35,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-05 21:10:35,241 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 96
[2023-12-05 21:10:35,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-12-05 21:10:35,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 96
[2023-12-05 21:10:35,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-12-05 21:10:35,270 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events.
[2023-12-05 21:10:35,270 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES.
[2023-12-05 21:10:35,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 54 events. 2/54 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 3/57 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place.
[2023-12-05 21:10:35,271 INFO L140 encePairwiseOnDemand]: 94/96 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions.
[2023-12-05 21:10:35,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 191 flow
[2023-12-05 21:10:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-12-05 21:10:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-12-05 21:10:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions.
[2023-12-05 21:10:35,274 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666
[2023-12-05 21:10:35,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions.
[2023-12-05 21:10:35,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions.
[2023-12-05 21:10:35,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-12-05 21:10:35,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions.
[2023-12-05 21:10:35,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,276 INFO L308 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places.
[2023-12-05 21:10:35,276 INFO L500 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 191 flow
[2023-12-05 21:10:35,277 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-05 21:10:35,282 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe029_power.oepc_pso.oepc_rmo.oepc.i_BEv2_AllErrorsAtOnce
[2023-12-05 21:10:35,309 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining)
[2023-12-05 21:10:35,310 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining)
[2023-12-05 21:10:35,310 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining)
[2023-12-05 21:10:35,310 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining)
[2023-12-05 21:10:35,310 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining)
[2023-12-05 21:10:35,310 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining)
[2023-12-05 21:10:35,310 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-05 21:10:35,311 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-12-05 21:10:35,313 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-12-05 21:10:35,313 INFO L172 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-05 21:10:35,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:10:35 BasicIcfg
[2023-12-05 21:10:35,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-05 21:10:35,324 INFO L158 Benchmark]: Toolchain (without parser) took 2114.99ms. Allocated memory is still 298.8MB. Free memory was 246.8MB in the beginning and 237.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB.
[2023-12-05 21:10:35,324 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-05 21:10:35,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.31ms. Allocated memory is still 298.8MB. Free memory was 246.8MB in the beginning and 224.3MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
[2023-12-05 21:10:35,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.76ms. Allocated memory is still 298.8MB. Free memory was 224.3MB in the beginning and 221.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2023-12-05 21:10:35,325 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 298.8MB. Free memory was 221.7MB in the beginning and 219.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-05 21:10:35,330 INFO L158 Benchmark]: RCFGBuilder took 491.86ms. Allocated memory is still 298.8MB. Free memory was 219.6MB in the beginning and 186.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB.
[2023-12-05 21:10:35,330 INFO L158 Benchmark]: TraceAbstraction took 1081.90ms. Allocated memory is still 298.8MB. Free memory was 185.5MB in the beginning and 237.8MB in the end (delta: -52.3MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-05 21:10:35,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 428.31ms. Allocated memory is still 298.8MB. Free memory was 246.8MB in the beginning and 224.3MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 60.76ms. Allocated memory is still 298.8MB. Free memory was 224.3MB in the beginning and 221.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 46.42ms. Allocated memory is still 298.8MB. Free memory was 221.7MB in the beginning and 219.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 491.86ms. Allocated memory is still 298.8MB. Free memory was 219.6MB in the beginning and 186.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 1081.90ms. Allocated memory is still 298.8MB. Free memory was 185.5MB in the beginning and 237.8MB in the end (delta: -52.3MB). There was no memory consumed. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 112 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-12-05 21:10:35,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...