/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/goblint-regression/28-race_reach_06-cond_racing1.i


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


This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m
[2024-05-03 10:26:23,509 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-05-03 10:26:23,575 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf
[2024-05-03 10:26:23,579 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-05-03 10:26:23,580 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-05-03 10:26:23,600 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-05-03 10:26:23,600 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-05-03 10:26:23,600 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-05-03 10:26:23,601 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-05-03 10:26:23,604 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-05-03 10:26:23,604 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-05-03 10:26:23,604 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-05-03 10:26:23,605 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-05-03 10:26:23,606 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-05-03 10:26:23,606 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-05-03 10:26:23,606 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-05-03 10:26:23,606 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-05-03 10:26:23,606 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-05-03 10:26:23,607 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-05-03 10:26:23,607 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-05-03 10:26:23,607 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-05-03 10:26:23,607 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-05-03 10:26:23,608 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-05-03 10:26:23,608 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-05-03 10:26:23,608 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-05-03 10:26:23,609 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-05-03 10:26:23,609 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-05-03 10:26:23,609 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-05-03 10:26:23,609 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-05-03 10:26:23,609 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-05-03 10:26:23,610 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-05-03 10:26:23,610 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-05-03 10:26:23,610 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-05-03 10:26:23,610 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-05-03 10:26:23,611 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2024-05-03 10:26:23,611 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-05-03 10:26:23,611 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-05-03 10:26:23,611 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-05-03 10:26:23,611 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-05-03 10:26:23,611 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL
[2024-05-03 10:26:23,859 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-05-03 10:26:23,876 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-05-03 10:26:23,878 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-05-03 10:26:23,879 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-05-03 10:26:23,880 INFO  L274        PluginConnector]: CDTParser initialized
[2024-05-03 10:26:23,881 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i
[2024-05-03 10:26:25,091 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-05-03 10:26:25,315 INFO  L384              CDTParser]: Found 1 translation units.
[2024-05-03 10:26:25,315 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i
[2024-05-03 10:26:25,333 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/08e5bb7d5/020b88c8256840baabdbcce1bcb9e445/FLAG27146b47b
[2024-05-03 10:26:25,344 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/08e5bb7d5/020b88c8256840baabdbcce1bcb9e445
[2024-05-03 10:26:25,346 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-05-03 10:26:25,347 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-05-03 10:26:25,347 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-05-03 10:26:25,347 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-05-03 10:26:25,351 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-05-03 10:26:25,351 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:25,352 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f61a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25, skipping insertion in model container
[2024-05-03 10:26:25,352 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:25,398 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2024-05-03 10:26:25,811 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335]
[2024-05-03 10:26:25,832 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-05-03 10:26:25,846 INFO  L202         MainTranslator]: Completed pre-run
[2024-05-03 10:26:25,881 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335]
[2024-05-03 10:26:25,896 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-05-03 10:26:25,955 INFO  L206         MainTranslator]: Completed translation
[2024-05-03 10:26:25,956 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25 WrapperNode
[2024-05-03 10:26:25,956 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-05-03 10:26:25,957 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-05-03 10:26:25,957 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-05-03 10:26:25,957 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-05-03 10:26:25,962 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:25,988 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,016 INFO  L138                Inliner]: procedures = 271, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91
[2024-05-03 10:26:26,017 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-05-03 10:26:26,017 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-05-03 10:26:26,017 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-05-03 10:26:26,018 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-05-03 10:26:26,024 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,025 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,039 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,040 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,043 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,046 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,047 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,048 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,049 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-05-03 10:26:26,050 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-05-03 10:26:26,050 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-05-03 10:26:26,050 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-05-03 10:26:26,051 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (1/1) ...
[2024-05-03 10:26:26,067 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-05-03 10:26:26,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:26,092 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 10:26:26,121 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 10:26:26,143 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-05-03 10:26:26,143 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-05-03 10:26:26,143 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-05-03 10:26:26,143 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-05-03 10:26:26,144 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-05-03 10:26:26,144 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-05-03 10:26:26,144 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-05-03 10:26:26,146 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 10:26:26,274 INFO  L241             CfgBuilder]: Building ICFG
[2024-05-03 10:26:26,276 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-05-03 10:26:26,478 INFO  L282             CfgBuilder]: Performing block encoding
[2024-05-03 10:26:26,501 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-05-03 10:26:26,501 INFO  L309             CfgBuilder]: Removed 10 assume(true) statements.
[2024-05-03 10:26:26,502 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:26:26 BoogieIcfgContainer
[2024-05-03 10:26:26,502 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-05-03 10:26:26,504 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-05-03 10:26:26,504 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-05-03 10:26:26,506 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-05-03 10:26:26,506 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 10:26:25" (1/3) ...
[2024-05-03 10:26:26,507 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7802912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:26:26, skipping insertion in model container
[2024-05-03 10:26:26,507 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 10:26:25" (2/3) ...
[2024-05-03 10:26:26,507 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7802912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:26:26, skipping insertion in model container
[2024-05-03 10:26:26,507 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:26:26" (3/3) ...
[2024-05-03 10:26:26,508 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i
[2024-05-03 10:26:26,515 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2024-05-03 10:26:26,523 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-05-03 10:26:26,523 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-05-03 10:26:26,523 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-05-03 10:26:26,559 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-05-03 10:26:26,597 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:26,597 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:26,597 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:26,600 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 10:26:26,603 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 10:26:26,652 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:26,658 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-05-03 10:26:26,664 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:26,664 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:26,858 INFO  L78                 Accepts]: Start accepts. Automaton has currently 186 states, but on-demand construction may add more states Word has length 58
[2024-05-03 10:26:26,860 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:26,860 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:26:26,864 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:26,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 677470094, now seen corresponding path program 1 times
[2024-05-03 10:26:26,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:26,878 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831015049]
[2024-05-03 10:26:26,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:26,878 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:27,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:27,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:27,249 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:26:27,249 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831015049]
[2024-05-03 10:26:27,250 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831015049] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:26:27,250 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555284230]
[2024-05-03 10:26:27,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:27,250 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:26:27,250 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:27,307 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 10:26:27,308 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 10:26:27,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:27,404 INFO  L262         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core
[2024-05-03 10:26:27,409 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:26:27,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:27,457 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:26:27,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:27,502 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [555284230] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:26:27,502 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:26:27,502 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-05-03 10:26:27,504 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143936549]
[2024-05-03 10:26:27,504 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:26:27,515 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-05-03 10:26:27,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:26:27,536 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-05-03 10:26:27,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-05-03 10:26:27,538 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:27,540 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:26:27,541 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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 10:26:27,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:27,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-05-03 10:26:27,654 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-05-03 10:26:27,661 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 10:26:27,860 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,SelfDestructingSolverStorable0
[2024-05-03 10:26:27,865 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2024-05-03 10:26:27,866 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2)
[2024-05-03 10:26:27,873 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:27,873 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:27,873 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:27,875 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 10:26:27,881 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:27,882 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:26:27,882 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:27,882 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:27,905 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 10:26:27,909 INFO  L78                 Accepts]: Start accepts. Automaton has currently 59 states, but on-demand construction may add more states Word has length 49
[2024-05-03 10:26:27,909 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:27,909 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:26:27,910 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:27,910 INFO  L85        PathProgramCache]: Analyzing trace with hash -1141811049, now seen corresponding path program 1 times
[2024-05-03 10:26:27,910 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:27,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644500438]
[2024-05-03 10:26:27,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:27,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:27,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:27,937 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-05-03 10:26:27,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:27,973 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-05-03 10:26:27,973 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-05-03 10:26:27,973 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-05-03 10:26:27,973 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-05-03 10:26:27,975 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2024-05-03 10:26:27,975 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/2)
[2024-05-03 10:26:27,975 WARN  L234   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-05-03 10:26:27,975 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-05-03 10:26:27,992 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-05-03 10:26:27,994 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:27,994 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:27,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:28,000 INFO  L229       MonitoredProcess]: Starting monitored process 5 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 10:26:28,004 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:28,004 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-05-03 10:26:28,004 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:28,005 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:28,026 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process
[2024-05-03 10:26:28,263 INFO  L78                 Accepts]: Start accepts. Automaton has currently 2854 states, but on-demand construction may add more states Word has length 66
[2024-05-03 10:26:28,264 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:28,264 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:26:28,265 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:28,265 INFO  L85        PathProgramCache]: Analyzing trace with hash 521370058, now seen corresponding path program 1 times
[2024-05-03 10:26:28,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:28,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999968890]
[2024-05-03 10:26:28,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:28,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:28,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:28,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-05-03 10:26:28,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:26:28,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999968890]
[2024-05-03 10:26:28,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999968890] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:26:28,562 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:26:28,562 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:26:28,562 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769313620]
[2024-05-03 10:26:28,563 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:26:28,563 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:26:28,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:26:28,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:26:28,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:26:28,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:28,565 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:26:28,565 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:26:28,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:29,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:29,023 INFO  L78                 Accepts]: Start accepts. Automaton has currently 8240 states, but on-demand construction may add more states Word has length 74
[2024-05-03 10:26:29,023 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:29,024 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-05-03 10:26:29,024 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:26:29,026 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:29,027 INFO  L85        PathProgramCache]: Analyzing trace with hash -715246816, now seen corresponding path program 1 times
[2024-05-03 10:26:29,027 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:29,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760115795]
[2024-05-03 10:26:29,031 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:29,031 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:29,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:29,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:29,186 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:26:29,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760115795]
[2024-05-03 10:26:29,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760115795] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:26:29,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126587477]
[2024-05-03 10:26:29,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:29,186 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:26:29,188 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:29,190 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:26:29,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-05-03 10:26:29,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:29,272 INFO  L262         TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjunts are in the unsatisfiable core
[2024-05-03 10:26:29,276 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:26:29,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:29,318 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:26:29,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:29,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126587477] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:26:29,421 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:26:29,421 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14
[2024-05-03 10:26:29,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354840046]
[2024-05-03 10:26:29,422 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:26:29,423 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-05-03 10:26:29,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:26:29,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-05-03 10:26:29,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2024-05-03 10:26:29,425 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:29,427 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:26:29,427 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 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 10:26:29,427 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:29,427 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:29,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:29,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-05-03 10:26:29,821 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-05-03 10:26:29,829 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-05-03 10:26:30,027 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:26:30,031 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-05-03 10:26:30,032 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2)
[2024-05-03 10:26:30,034 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:30,034 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:30,034 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:30,040 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 10:26:30,055 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:30,055 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:26:30,056 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:30,056 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:30,080 INFO  L78                 Accepts]: Start accepts. Automaton has currently 84 states, but on-demand construction may add more states Word has length 57
[2024-05-03 10:26:30,082 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:30,082 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:26:30,082 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:30,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -1260318977, now seen corresponding path program 1 times
[2024-05-03 10:26:30,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:30,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250777354]
[2024-05-03 10:26:30,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:30,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:30,083 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process
[2024-05-03 10:26:30,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:30,103 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-05-03 10:26:30,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:30,128 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-05-03 10:26:30,129 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-05-03 10:26:30,129 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-05-03 10:26:30,129 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-05-03 10:26:30,130 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2024-05-03 10:26:30,130 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/2)
[2024-05-03 10:26:30,130 WARN  L234   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-05-03 10:26:30,131 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-05-03 10:26:30,159 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-05-03 10:26:30,164 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:30,165 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:30,165 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:30,194 INFO  L229       MonitoredProcess]: Starting monitored process 8 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 10:26:30,211 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:30,211 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-05-03 10:26:30,212 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:30,212 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:30,238 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process
[2024-05-03 10:26:32,903 INFO  L78                 Accepts]: Start accepts. Automaton has currently 70461 states, but on-demand construction may add more states Word has length 74
[2024-05-03 10:26:32,904 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:32,904 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:26:32,905 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:32,905 INFO  L85        PathProgramCache]: Analyzing trace with hash 1631013959, now seen corresponding path program 1 times
[2024-05-03 10:26:32,905 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:32,905 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053849921]
[2024-05-03 10:26:32,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:32,906 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:32,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:32,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-05-03 10:26:32,999 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:26:32,999 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053849921]
[2024-05-03 10:26:32,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053849921] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:26:32,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:26:33,000 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:26:33,000 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627187620]
[2024-05-03 10:26:33,000 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:26:33,000 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:26:33,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:26:33,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:26:33,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:26:33,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:33,001 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:26:33,002 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 10:26:33,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:41,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:41,668 INFO  L78                 Accepts]: Start accepts. Automaton has currently 211090 states, but on-demand construction may add more states Word has length 82
[2024-05-03 10:26:41,670 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:41,670 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-05-03 10:26:41,670 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:26:41,671 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:41,671 INFO  L85        PathProgramCache]: Analyzing trace with hash -503179107, now seen corresponding path program 1 times
[2024-05-03 10:26:41,671 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:41,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538350214]
[2024-05-03 10:26:41,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:41,675 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:41,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:41,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:41,877 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:26:41,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538350214]
[2024-05-03 10:26:41,877 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538350214] provided 0 perfect and 1 imperfect interpolant sequences
[2024-05-03 10:26:41,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323095367]
[2024-05-03 10:26:41,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:41,880 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:26:41,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:41,902 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-05-03 10:26:41,927 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-05-03 10:26:41,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:26:41,982 INFO  L262         TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjunts are in the unsatisfiable core
[2024-05-03 10:26:41,987 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-05-03 10:26:42,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:42,042 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-05-03 10:26:42,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-05-03 10:26:42,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323095367] provided 0 perfect and 2 imperfect interpolant sequences
[2024-05-03 10:26:42,116 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-05-03 10:26:42,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18
[2024-05-03 10:26:42,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643434917]
[2024-05-03 10:26:42,116 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-05-03 10:26:42,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-05-03 10:26:42,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:26:42,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-05-03 10:26:42,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-05-03 10:26:42,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:42,119 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:26:42,119 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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 10:26:42,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:42,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:26:47,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-05-03 10:26:47,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-05-03 10:26:47,085 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-05-03 10:26:47,091 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-05-03 10:26:47,291 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-05-03 10:26:47,292 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-05-03 10:26:47,293 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2)
[2024-05-03 10:26:47,295 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:47,295 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:47,295 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:47,308 INFO  L229       MonitoredProcess]: Starting monitored process 10 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 10:26:47,309 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process
[2024-05-03 10:26:47,312 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:47,312 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2024-05-03 10:26:47,312 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:47,312 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:26:47,335 INFO  L78                 Accepts]: Start accepts. Automaton has currently 117 states, but on-demand construction may add more states Word has length 65
[2024-05-03 10:26:47,335 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:26:47,336 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-05-03 10:26:47,336 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:26:47,336 INFO  L85        PathProgramCache]: Analyzing trace with hash -1164571649, now seen corresponding path program 1 times
[2024-05-03 10:26:47,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:26:47,337 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371499159]
[2024-05-03 10:26:47,337 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:26:47,337 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:26:47,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:47,349 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-05-03 10:26:47,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-05-03 10:26:47,372 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-05-03 10:26:47,373 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-05-03 10:26:47,373 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-05-03 10:26:47,374 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-05-03 10:26:47,374 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2024-05-03 10:26:47,375 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/2)
[2024-05-03 10:26:47,376 WARN  L234   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-05-03 10:26:47,376 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-05-03 10:26:47,399 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-05-03 10:26:47,401 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:47,401 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-05-03 10:26:47,401 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-05-03 10:26:47,419 INFO  L229       MonitoredProcess]: Starting monitored process 11 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 10:26:47,424 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process
[2024-05-03 10:26:47,425 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-05-03 10:26:47,426 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2024-05-03 10:26:47,426 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;@5953ec7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-05-03 10:26:47,426 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-05-03 10:28:26,817 INFO  L78                 Accepts]: Start accepts. Automaton has currently 1828111 states, but on-demand construction may add more states Word has length 82
[2024-05-03 10:28:26,817 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2024-05-03 10:28:26,817 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-05-03 10:28:26,818 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-05-03 10:28:26,818 INFO  L85        PathProgramCache]: Analyzing trace with hash 1272467013, now seen corresponding path program 1 times
[2024-05-03 10:28:26,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-05-03 10:28:26,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786283260]
[2024-05-03 10:28:26,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-05-03 10:28:26,818 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-05-03 10:28:26,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-05-03 10:28:26,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-05-03 10:28:26,923 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-05-03 10:28:26,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786283260]
[2024-05-03 10:28:26,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786283260] provided 1 perfect and 0 imperfect interpolant sequences
[2024-05-03 10:28:26,923 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-05-03 10:28:26,923 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-05-03 10:28:26,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124805993]
[2024-05-03 10:28:26,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-05-03 10:28:26,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-05-03 10:28:26,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-05-03 10:28:26,924 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-05-03 10:28:26,924 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-05-03 10:28:26,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-05-03 10:28:26,925 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-05-03 10:28:26,925 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 10:28:26,925 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.