/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m
[2024-05-03 10:13:06,207 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-05-03 10:13:06,265 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf
[2024-05-03 10:13:06,270 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-05-03 10:13:06,270 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-05-03 10:13:06,291 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-05-03 10:13:06,292 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-05-03 10:13:06,292 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-05-03 10:13:06,293 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-05-03 10:13:06,293 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-05-03 10:13:06,293 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-05-03 10:13:06,293 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-05-03 10:13:06,294 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-05-03 10:13:06,294 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-05-03 10:13:06,294 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-05-03 10:13:06,294 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-05-03 10:13:06,295 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-05-03 10:13:06,295 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-05-03 10:13:06,295 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-05-03 10:13:06,295 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-05-03 10:13:06,296 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-05-03 10:13:06,304 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-05-03 10:13:06,305 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-05-03 10:13:06,305 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-05-03 10:13:06,306 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-05-03 10:13:06,306 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-05-03 10:13:06,306 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-05-03 10:13:06,307 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-05-03 10:13:06,307 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-05-03 10:13:06,307 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-05-03 10:13:06,307 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-05-03 10:13:06,308 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-05-03 10:13:06,308 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-05-03 10:13:06,308 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-05-03 10:13:06,308 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2024-05-03 10:13:06,308 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-05-03 10:13:06,309 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-05-03 10:13:06,309 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-05-03 10:13:06,309 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-05-03 10:13:06,309 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/UGemCutter-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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL
[2024-05-03 10:13:06,543 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-05-03 10:13:06,561 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-05-03 10:13:06,563 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-05-03 10:13:06,565 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-05-03 10:13:06,565 INFO  L274        PluginConnector]: CDTParser initialized
[2024-05-03 10:13:06,567 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i
[2024-05-03 10:13:07,650 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-05-03 10:13:07,919 INFO  L384              CDTParser]: Found 1 translation units.
[2024-05-03 10:13:07,919 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i
[2024-05-03 10:13:07,943 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d915c491/4159f74492dd4cf4affcc868878febe0/FLAGee5031d08
[2024-05-03 10:13:07,957 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d915c491/4159f74492dd4cf4affcc868878febe0
[2024-05-03 10:13:07,959 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-05-03 10:13:07,962 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-05-03 10:13:07,963 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-05-03 10:13:07,963 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-05-03 10:13:07,967 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-05-03 10:13:07,968 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 10:13:07" (1/1) ...
[2024-05-03 10:13:07,968 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3522a3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:07, skipping insertion in model container
[2024-05-03 10:13:07,969 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 10:13:07" (1/1) ...
[2024-05-03 10:13:08,021 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2024-05-03 10:13:08,489 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873]
[2024-05-03 10:13:08,502 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-05-03 10:13:08,513 INFO  L202         MainTranslator]: Completed pre-run
[2024-05-03 10:13:08,584 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873]
[2024-05-03 10:13:08,586 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-05-03 10:13:08,680 INFO  L206         MainTranslator]: Completed translation
[2024-05-03 10:13:08,680 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08 WrapperNode
[2024-05-03 10:13:08,680 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-05-03 10:13:08,681 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-05-03 10:13:08,681 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-05-03 10:13:08,682 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-05-03 10:13:08,687 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,721 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,772 INFO  L138                Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 288
[2024-05-03 10:13:08,773 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-05-03 10:13:08,773 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-05-03 10:13:08,773 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-05-03 10:13:08,774 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-05-03 10:13:08,781 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,781 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,798 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,798 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,824 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,828 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,830 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,832 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,836 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-05-03 10:13:08,837 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-05-03 10:13:08,837 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-05-03 10:13:08,837 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-05-03 10:13:08,838 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (1/1) ...
[2024-05-03 10:13:08,859 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-05-03 10:13:08,871 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:08,887 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-05-03 10:13:08,904 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-05-03 10:13:08,924 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-05-03 10:13:08,924 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-05-03 10:13:08,924 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2024-05-03 10:13:08,925 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-05-03 10:13:08,925 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-05-03 10:13:08,925 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-05-03 10:13:08,926 WARN  L213             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-05-03 10:13:09,140 INFO  L241             CfgBuilder]: Building ICFG
[2024-05-03 10:13:09,142 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-05-03 10:13:09,460 INFO  L282             CfgBuilder]: Performing block encoding
[2024-05-03 10:13:09,503 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-05-03 10:13:09,503 INFO  L309             CfgBuilder]: Removed 7 assume(true) statements.
[2024-05-03 10:13:09,503 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:13:09 BoogieIcfgContainer
[2024-05-03 10:13:09,503 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-05-03 10:13:09,505 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-05-03 10:13:09,506 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-05-03 10:13:09,508 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-05-03 10:13:09,508 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 10:13:07" (1/3) ...
[2024-05-03 10:13:09,509 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4899374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:13:09, skipping insertion in model container
[2024-05-03 10:13:09,509 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:13:08" (2/3) ...
[2024-05-03 10:13:09,509 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4899374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:13:09, skipping insertion in model container
[2024-05-03 10:13:09,509 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:13:09" (3/3) ...
[2024-05-03 10:13:09,511 INFO  L112   eAbstractionObserver]: Analyzing ICFG safestack_relacy.i
[2024-05-03 10:13:09,518 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2024-05-03 10:13:09,526 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-05-03 10:13:09,526 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-05-03 10:13:09,526 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-05-03 10:13:09,602 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-05-03 10:13:09,647 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:09,647 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:13:09,647 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:09,650 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-05-03 10:13:09,654 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-05-03 10:13:09,687 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:13:09,693 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:13:09,698 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@4374cda1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:09,698 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:13:09,805 INFO  L78                 Accepts]: Start accepts. Automaton has currently 91 states, but on-demand construction may add more states Word has length 69
[2024-05-03 10:13:09,806 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:09,806 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:09,812 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:09,813 INFO  L85        PathProgramCache]: Analyzing trace with hash -459759390, now seen corresponding path program 1 times
[2024-05-03 10:13:09,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:09,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986551594]
[2024-05-03 10:13:09,820 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:09,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:10,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:10,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-05-03 10:13:10,324 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:10,324 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986551594]
[2024-05-03 10:13:10,325 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986551594] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:13:10,326 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:13:10,326 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:13:10,327 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524493702]
[2024-05-03 10:13:10,327 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:13:10,334 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:13:10,334 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:10,356 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:13:10,357 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:13:10,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:10,361 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:10,362 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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)
[2024-05-03 10:13:10,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:10,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:10,433 INFO  L78                 Accepts]: Start accepts. Automaton has currently 100 states, but on-demand construction may add more states Word has length 80
[2024-05-03 10:13:10,434 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:10,434 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-05-03 10:13:10,435 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:10,435 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:10,435 INFO  L85        PathProgramCache]: Analyzing trace with hash -679447610, now seen corresponding path program 1 times
[2024-05-03 10:13:10,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:10,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022306348]
[2024-05-03 10:13:10,436 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:10,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:10,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:10,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-05-03 10:13:10,663 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:10,663 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022306348]
[2024-05-03 10:13:10,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022306348] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:13:10,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781724344]
[2024-05-03 10:13:10,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:10,664 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:10,664 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:10,698 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:13:10,701 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-05-03 10:13:10,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:10,840 INFO  L262         TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjunts are in the unsatisfiable core
[2024-05-03 10:13:10,846 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:13:10,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-05-03 10:13:10,988 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:13:11,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-05-03 10:13:11,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [781724344] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:13:11,073 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:13:11,073 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15
[2024-05-03 10:13:11,074 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286508753]
[2024-05-03 10:13:11,074 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:13:11,076 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-05-03 10:13:11,077 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:11,078 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-05-03 10:13:11,078 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210
[2024-05-03 10:13:11,078 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:11,080 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:11,080 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 8.0) internal successors, (120), 15 states have internal predecessors, (120), 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)
[2024-05-03 10:13:11,080 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:11,080 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:11,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:11,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:13:11,213 INFO  L78                 Accepts]: Start accepts. Automaton has currently 102 states, but on-demand construction may add more states Word has length 91
[2024-05-03 10:13:11,214 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:11,220 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-05-03 10:13:11,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-05-03 10:13:11,421 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:11,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:11,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 1914219106, now seen corresponding path program 2 times
[2024-05-03 10:13:11,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:11,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232932448]
[2024-05-03 10:13:11,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:11,422 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:11,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:13:11,504 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-05-03 10:13:11,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:13:11,596 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-05-03 10:13:11,597 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-05-03 10:13:11,598 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-05-03 10:13:11,599 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-05-03 10:13:11,610 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1]
[2024-05-03 10:13:11,611 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (1/3)
[2024-05-03 10:13:11,612 WARN  L234   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-05-03 10:13:11,612 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-05-03 10:13:11,687 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-05-03 10:13:11,694 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:11,694 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:13:11,694 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:11,695 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-05-03 10:13:11,698 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process
[2024-05-03 10:13:11,701 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:13:11,703 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:13:11,703 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@4374cda1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:11,703 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:13:11,767 INFO  L78                 Accepts]: Start accepts. Automaton has currently 122 states, but on-demand construction may add more states Word has length 79
[2024-05-03 10:13:11,767 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:11,768 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:11,768 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:11,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 1729904077, now seen corresponding path program 1 times
[2024-05-03 10:13:11,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:11,768 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527238469]
[2024-05-03 10:13:11,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:11,768 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:11,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:11,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-05-03 10:13:11,900 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:11,900 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527238469]
[2024-05-03 10:13:11,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527238469] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:13:11,903 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:13:11,903 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:13:11,903 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530697162]
[2024-05-03 10:13:11,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:13:11,908 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:13:11,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:11,908 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:13:11,908 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:13:11,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:11,909 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:11,909 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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)
[2024-05-03 10:13:11,909 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:11,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:11,950 INFO  L78                 Accepts]: Start accepts. Automaton has currently 130 states, but on-demand construction may add more states Word has length 90
[2024-05-03 10:13:11,952 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:11,952 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-05-03 10:13:11,952 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:11,953 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:11,953 INFO  L85        PathProgramCache]: Analyzing trace with hash 1930678090, now seen corresponding path program 1 times
[2024-05-03 10:13:11,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:11,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647179979]
[2024-05-03 10:13:11,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:11,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:11,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:12,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-05-03 10:13:12,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:12,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647179979]
[2024-05-03 10:13:12,129 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647179979] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:13:12,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679877719]
[2024-05-03 10:13:12,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:12,129 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:12,129 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:12,132 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:13:12,144 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-05-03 10:13:12,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:12,278 INFO  L262         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core
[2024-05-03 10:13:12,308 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:13:12,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-05-03 10:13:12,392 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:13:12,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-05-03 10:13:12,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [679877719] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:13:12,469 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:13:12,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15
[2024-05-03 10:13:12,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693524993]
[2024-05-03 10:13:12,469 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:13:12,470 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-05-03 10:13:12,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:12,471 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-05-03 10:13:12,472 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210
[2024-05-03 10:13:12,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:12,472 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:12,472 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 8.066666666666666) internal successors, (121), 15 states have internal predecessors, (121), 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)
[2024-05-03 10:13:12,472 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:12,472 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:12,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:12,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:13:12,573 INFO  L78                 Accepts]: Start accepts. Automaton has currently 132 states, but on-demand construction may add more states Word has length 101
[2024-05-03 10:13:12,573 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:12,581 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-05-03 10:13:12,778 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:12,779 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:12,779 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:12,779 INFO  L85        PathProgramCache]: Analyzing trace with hash 1998937517, now seen corresponding path program 2 times
[2024-05-03 10:13:12,779 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:12,780 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951915969]
[2024-05-03 10:13:12,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:12,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:12,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:13:12,817 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-05-03 10:13:12,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:13:12,843 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-05-03 10:13:12,844 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-05-03 10:13:12,844 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-05-03 10:13:12,844 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-05-03 10:13:12,845 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1]
[2024-05-03 10:13:12,845 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (1/4)
[2024-05-03 10:13:12,845 WARN  L234   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-05-03 10:13:12,845 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-05-03 10:13:12,921 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-05-03 10:13:12,928 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:12,928 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:13:12,928 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:12,929 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-05-03 10:13:12,934 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:13:12,935 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:13:12,935 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@4374cda1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:13:12,935 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:13:12,957 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process
[2024-05-03 10:13:12,993 INFO  L78                 Accepts]: Start accepts. Automaton has currently 163 states, but on-demand construction may add more states Word has length 89
[2024-05-03 10:13:12,993 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:12,993 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:12,994 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:12,994 INFO  L85        PathProgramCache]: Analyzing trace with hash 1958559219, now seen corresponding path program 1 times
[2024-05-03 10:13:12,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:12,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840872914]
[2024-05-03 10:13:12,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:12,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:13,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:13,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-05-03 10:13:13,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:13,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840872914]
[2024-05-03 10:13:13,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840872914] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:13:13,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:13:13,084 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:13:13,084 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569494826]
[2024-05-03 10:13:13,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:13:13,084 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:13:13,084 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:13,085 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:13:13,085 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:13:13,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:13,085 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:13,085 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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)
[2024-05-03 10:13:13,085 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:13,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:13,121 INFO  L78                 Accepts]: Start accepts. Automaton has currently 170 states, but on-demand construction may add more states Word has length 100
[2024-05-03 10:13:13,122 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:13,122 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-05-03 10:13:13,122 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:13,122 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:13,122 INFO  L85        PathProgramCache]: Analyzing trace with hash -1752969657, now seen corresponding path program 1 times
[2024-05-03 10:13:13,122 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:13,122 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034359232]
[2024-05-03 10:13:13,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:13,122 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:13,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:13,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-05-03 10:13:13,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:13,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034359232]
[2024-05-03 10:13:13,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034359232] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:13:13,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18492479]
[2024-05-03 10:13:13,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:13,253 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:13,253 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:13,256 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:13:13,258 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-05-03 10:13:13,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:13,427 INFO  L262         TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core
[2024-05-03 10:13:13,429 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:13:13,548 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-05-03 10:13:13,548 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:13:13,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-05-03 10:13:13,606 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [18492479] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:13:13,606 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:13:13,606 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15
[2024-05-03 10:13:13,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346026464]
[2024-05-03 10:13:13,606 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:13:13,606 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-05-03 10:13:13,606 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:13,607 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-05-03 10:13:13,607 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210
[2024-05-03 10:13:13,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:13,607 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:13,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 states have internal predecessors, (122), 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)
[2024-05-03 10:13:13,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:13,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:13,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:13,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:13:13,693 INFO  L78                 Accepts]: Start accepts. Automaton has currently 172 states, but on-demand construction may add more states Word has length 111
[2024-05-03 10:13:13,694 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:13:13,703 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-05-03 10:13:13,908 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:13,909 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:13:13,909 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:13:13,909 INFO  L85        PathProgramCache]: Analyzing trace with hash -1873968781, now seen corresponding path program 2 times
[2024-05-03 10:13:13,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:13:13,909 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836984646]
[2024-05-03 10:13:13,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:13:13,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:13:13,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:13:14,016 INFO  L134       CoverageAnalysis]: Checked inductivity of 58 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-05-03 10:13:14,016 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:13:14,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836984646]
[2024-05-03 10:13:14,017 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836984646] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:13:14,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569430306]
[2024-05-03 10:13:14,017 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-05-03 10:13:14,017 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:13:14,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:13:14,018 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:13:14,031 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-05-03 10:13:14,207 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-05-03 10:13:14,208 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-05-03 10:13:14,209 INFO  L262         TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core
[2024-05-03 10:13:14,211 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:13:14,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 58 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-05-03 10:13:14,247 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-05-03 10:13:14,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569430306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:13:14,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-05-03 10:13:14,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7
[2024-05-03 10:13:14,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640515039]
[2024-05-03 10:13:14,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:13:14,248 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-05-03 10:13:14,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:13:14,249 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-05-03 10:13:14,249 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-05-03 10:13:14,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:13:14,250 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:13:14,250 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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)
[2024-05-03 10:13:14,250 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-05-03 10:13:14,250 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:13:14,250 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.