/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis SUFFICIENT_WITH_CONTEXT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i


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


This is Ultimate 0.3.0-wip.dk.conditional-comm-158c277
[2024-11-14 09:35:39,198 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-14 09:35:39,254 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf
[2024-11-14 09:35:39,259 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-14 09:35:39,259 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-14 09:35:39,285 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-14 09:35:39,285 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-14 09:35:39,285 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-14 09:35:39,286 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-14 09:35:39,286 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-14 09:35:39,287 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-14 09:35:39,287 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-14 09:35:39,287 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-14 09:35:39,288 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-14 09:35:39,289 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-14 09:35:39,290 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 09:35:39,290 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-14 09:35:39,290 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-11-14 09:35:39,291 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT_WITH_CONTEXT
[2024-11-14 09:35:39,529 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-14 09:35:39,535 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-14 09:35:39,537 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-14 09:35:39,538 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-14 09:35:39,538 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-14 09:35:39,539 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i
[2024-11-14 09:35:40,843 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-14 09:35:41,163 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-14 09:35:41,164 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i
[2024-11-14 09:35:41,187 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/5eefab64d/de87adf2ecf44744bb7aea7d718238e5/FLAG2b46a1c19
[2024-11-14 09:35:41,410 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/5eefab64d/de87adf2ecf44744bb7aea7d718238e5
[2024-11-14 09:35:41,413 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-14 09:35:41,414 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-14 09:35:41,419 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-14 09:35:41,419 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-14 09:35:41,424 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-14 09:35:41,425 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:41,426 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8ac1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41, skipping insertion in model container
[2024-11-14 09:35:41,426 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:41,467 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-14 09:35:41,769 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051]
[2024-11-14 09:35:41,803 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 09:35:41,825 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-14 09:35:41,877 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051]
[2024-11-14 09:35:41,893 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 09:35:41,961 INFO  L204         MainTranslator]: Completed translation
[2024-11-14 09:35:41,961 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41 WrapperNode
[2024-11-14 09:35:41,961 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-14 09:35:41,962 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-14 09:35:41,962 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-14 09:35:41,962 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-14 09:35:41,966 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:41,980 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,000 INFO  L138                Inliner]: procedures = 280, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 263
[2024-11-14 09:35:42,001 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-14 09:35:42,001 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-14 09:35:42,001 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-14 09:35:42,002 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-14 09:35:42,007 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,008 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,012 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,012 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,020 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,027 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,028 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,029 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,032 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-14 09:35:42,033 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-14 09:35:42,033 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-14 09:35:42,033 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-14 09:35:42,034 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (1/1) ...
[2024-11-14 09:35:42,038 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 09:35:42,051 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-14 09:35:42,060 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-14 09:35:42,063 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-14 09:35:42,082 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure t1_fun
[2024-11-14 09:35:42,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1_fun
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure t2_fun
[2024-11-14 09:35:42,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2_fun
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-14 09:35:42,083 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-14 09:35:42,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-14 09:35:42,085 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-14 09:35:42,208 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-14 09:35:42,210 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-14 09:35:42,593 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-14 09:35:42,593 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-14 09:35:42,624 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-14 09:35:42,624 INFO  L316             CfgBuilder]: Removed 15 assume(true) statements.
[2024-11-14 09:35:42,624 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:35:42 BoogieIcfgContainer
[2024-11-14 09:35:42,625 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-14 09:35:42,626 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-14 09:35:42,626 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-14 09:35:42,630 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-14 09:35:42,630 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 09:35:41" (1/3) ...
[2024-11-14 09:35:42,631 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac06180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:35:42, skipping insertion in model container
[2024-11-14 09:35:42,631 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:35:41" (2/3) ...
[2024-11-14 09:35:42,631 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac06180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:35:42, skipping insertion in model container
[2024-11-14 09:35:42,631 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:35:42" (3/3) ...
[2024-11-14 09:35:42,632 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i
[2024-11-14 09:35:42,647 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-14 09:35:42,649 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_81-list_racing.i that has 3 procedures, 253 locations, 1 initial locations, 10 loop locations, and 1 error locations.
[2024-11-14 09:35:42,649 INFO  L492   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-14 09:35:42,738 INFO  L143    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-14 09:35:42,801 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:42,802 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-11-14 09:35:42,802 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-14 09:35:42,805 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-11-14 09:35:42,807 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-11-14 09:35:42,917 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:35:42,931 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ========
[2024-11-14 09:35:42,939 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:42,939 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 09:35:43,837 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:35:43,844 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:35:43,844 INFO  L85        PathProgramCache]: Analyzing trace with hash -1283090442, now seen corresponding path program 1 times
[2024-11-14 09:35:43,851 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:35:43,852 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638768134]
[2024-11-14 09:35:43,852 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:35:43,853 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:35:44,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:35:44,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:35:44,226 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:35:44,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638768134]
[2024-11-14 09:35:44,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638768134] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:35:44,226 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:35:44,227 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 09:35:44,228 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879672436]
[2024-11-14 09:35:44,228 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:35:44,232 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-14 09:35:44,232 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:35:44,245 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-14 09:35:44,246 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-14 09:35:44,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:44,247 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:35:44,248 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 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)
[2024-11-14 09:35:44,248 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:44,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:44,375 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-14 09:35:44,376 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:35:44,376 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:35:44,376 INFO  L85        PathProgramCache]: Analyzing trace with hash 1897801729, now seen corresponding path program 1 times
[2024-11-14 09:35:44,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:35:44,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708838946]
[2024-11-14 09:35:44,377 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:35:44,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:35:44,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:35:44,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:35:44,861 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:35:44,861 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708838946]
[2024-11-14 09:35:44,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708838946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:35:44,861 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:35:44,861 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-14 09:35:44,861 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264840200]
[2024-11-14 09:35:44,861 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:35:44,862 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-14 09:35:44,862 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:35:44,865 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-14 09:35:44,865 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-14 09:35:44,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:44,866 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:35:44,866 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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)
[2024-11-14 09:35:44,866 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:44,866 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:46,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:46,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-14 09:35:46,333 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-14 09:35:46,333 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-14 09:35:46,337 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-14 09:35:46,338 INFO  L320   ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE (1/2)
[2024-11-14 09:35:46,343 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:46,344 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:35:46,345 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-11-14 09:35:46,345 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:46,345 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-14 09:35:46,372 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-14 09:35:46,373 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:35:46,374 INFO  L85        PathProgramCache]: Analyzing trace with hash 207094707, now seen corresponding path program 1 times
[2024-11-14 09:35:46,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:35:46,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581596217]
[2024-11-14 09:35:46,374 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:35:46,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:35:46,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 09:35:46,450 INFO  L357             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-14 09:35:46,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 09:35:46,546 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-14 09:35:46,547 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2024-11-14 09:35:46,547 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-14 09:35:46,547 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining)
[2024-11-14 09:35:46,547 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-14 09:35:46,549 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2024-11-14 09:35:46,550 INFO  L320   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2)
[2024-11-14 09:35:46,550 WARN  L247   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-14 09:35:46,550 INFO  L492   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-14 09:35:46,616 INFO  L143    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2024-11-14 09:35:46,626 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:46,627 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:35:46,627 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork1 ========
[2024-11-14 09:35:46,628 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:35:46,628 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 09:35:49,558 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:35:49,559 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:35:49,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 1138161705, now seen corresponding path program 1 times
[2024-11-14 09:35:49,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:35:49,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142891893]
[2024-11-14 09:35:49,559 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:35:49,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:35:49,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:35:49,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:35:49,676 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:35:49,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142891893]
[2024-11-14 09:35:49,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142891893] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:35:49,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:35:49,676 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 09:35:49,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130113672]
[2024-11-14 09:35:49,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:35:49,677 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-14 09:35:49,677 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:35:49,681 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-14 09:35:49,681 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-14 09:35:49,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:35:49,681 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:35:49,681 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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)
[2024-11-14 09:35:49,681 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:08,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:08,567 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-14 09:36:08,567 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:36:08,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:36:08,568 INFO  L85        PathProgramCache]: Analyzing trace with hash -1902244990, now seen corresponding path program 1 times
[2024-11-14 09:36:08,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:36:08,568 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726912164]
[2024-11-14 09:36:08,568 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:36:08,569 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:36:08,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:36:08,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:36:08,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:36:08,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726912164]
[2024-11-14 09:36:08,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726912164] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:36:08,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:36:08,945 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-14 09:36:08,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499921076]
[2024-11-14 09:36:08,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:36:08,947 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-14 09:36:08,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:36:08,948 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-14 09:36:08,948 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-14 09:36:08,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:08,950 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:36:08,950 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 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)
[2024-11-14 09:36:08,950 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:08,950 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:12,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:12,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-14 09:36:12,982 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-14 09:36:12,982 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-14 09:36:12,984 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-14 09:36:12,984 INFO  L320   ceAbstractionStarter]: Result for error location t2_funThread1of2ForFork1 was SAFE (1/3)
[2024-11-14 09:36:12,989 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:12,990 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:36:12,990 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-11-14 09:36:12,990 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:12,990 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-14 09:36:13,019 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-14 09:36:13,023 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:36:13,024 INFO  L85        PathProgramCache]: Analyzing trace with hash -361999770, now seen corresponding path program 1 times
[2024-11-14 09:36:13,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:36:13,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824960409]
[2024-11-14 09:36:13,024 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:36:13,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:36:13,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 09:36:13,093 INFO  L357             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-14 09:36:13,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 09:36:13,162 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-14 09:36:13,162 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2024-11-14 09:36:13,162 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-11-14 09:36:13,162 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining)
[2024-11-14 09:36:13,163 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-14 09:36:13,164 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2024-11-14 09:36:13,165 INFO  L320   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/3)
[2024-11-14 09:36:13,165 WARN  L247   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-14 09:36:13,165 INFO  L492   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-14 09:36:13,224 INFO  L143    ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions.
[2024-11-14 09:36:13,230 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:13,231 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:36:13,231 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread3of3ForFork1 ========
[2024-11-14 09:36:13,232 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:13,232 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 09:36:15,742 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:36:15,743 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:36:15,743 INFO  L85        PathProgramCache]: Analyzing trace with hash -839026908, now seen corresponding path program 1 times
[2024-11-14 09:36:15,743 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:36:15,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197819127]
[2024-11-14 09:36:15,743 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:36:15,743 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:36:15,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:36:15,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:36:15,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:36:15,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197819127]
[2024-11-14 09:36:15,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197819127] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:36:15,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:36:15,932 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 09:36:15,932 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732769257]
[2024-11-14 09:36:15,932 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:36:15,933 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-14 09:36:15,933 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:36:15,934 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-14 09:36:15,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-14 09:36:15,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:15,934 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:36:15,934 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 states have internal predecessors, (286), 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)
[2024-11-14 09:36:15,935 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:19,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:19,202 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-14 09:36:19,202 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:36:19,203 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:36:19,203 INFO  L85        PathProgramCache]: Analyzing trace with hash -1495624884, now seen corresponding path program 1 times
[2024-11-14 09:36:19,203 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:36:19,203 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090032978]
[2024-11-14 09:36:19,203 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:36:19,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:36:19,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:36:19,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:36:19,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:36:19,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090032978]
[2024-11-14 09:36:19,769 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090032978] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:36:19,769 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:36:19,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-14 09:36:19,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218527121]
[2024-11-14 09:36:19,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:36:19,770 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-14 09:36:19,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:36:19,771 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-14 09:36:19,771 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-14 09:36:19,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:19,771 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:36:19,771 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 39.77777777777778) internal successors, (358), 9 states have internal predecessors, (358), 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)
[2024-11-14 09:36:19,771 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:19,771 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:41,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:41,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-14 09:36:41,285 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-14 09:36:41,285 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-14 09:36:41,286 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-14 09:36:41,287 INFO  L320   ceAbstractionStarter]: Result for error location t2_funThread3of3ForFork1 was SAFE (1/4)
[2024-11-14 09:36:41,291 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:41,292 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 09:36:41,292 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of3ForFork1 ========
[2024-11-14 09:36:41,292 INFO  L333      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, 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;@310b6b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 09:36:41,293 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 09:36:45,033 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 09:36:45,034 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 09:36:45,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -1192978158, now seen corresponding path program 1 times
[2024-11-14 09:36:45,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 09:36:45,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989333871]
[2024-11-14 09:36:45,034 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 09:36:45,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 09:36:45,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 09:36:45,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 09:36:45,114 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 09:36:45,114 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989333871]
[2024-11-14 09:36:45,114 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989333871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 09:36:45,114 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 09:36:45,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 09:36:45,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258109195]
[2024-11-14 09:36:45,114 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 09:36:45,115 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-14 09:36:45,115 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 09:36:45,115 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-14 09:36:45,116 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-14 09:36:45,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 09:36:45,116 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 09:36:45,116 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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)
[2024-11-14 09:36:45,116 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.