./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version e94c40da
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-e94c40d-m
[2024-09-22 16:15:49,807 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-22 16:15:49,888 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf
[2024-09-22 16:15:49,892 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-22 16:15:49,893 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-22 16:15:49,914 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-22 16:15:49,915 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-22 16:15:49,915 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-22 16:15:49,916 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-22 16:15:49,916 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-22 16:15:49,917 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-22 16:15:49,917 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-22 16:15:49,918 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-22 16:15:49,921 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-22 16:15:49,921 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-22 16:15:49,922 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-22 16:15:49,922 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-22 16:15:49,922 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-22 16:15:49,922 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-22 16:15:49,923 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-22 16:15:49,923 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-22 16:15:49,924 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-22 16:15:49,925 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-22 16:15:49,925 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-22 16:15:49,925 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-22 16:15:49,925 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-22 16:15:49,926 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-22 16:15:49,926 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-22 16:15:49,926 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-22 16:15:49,926 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-22 16:15:49,926 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-09-22 16:15:49,927 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-22 16:15:49,927 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-22 16:15:49,927 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-22 16:15:49,927 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-22 16:15:49,928 INFO  L153        SettingsManager]:  * DFS Order used in POR=LOOP_LOCKSTEP
[2024-09-22 16:15:49,928 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-22 16:15:49,928 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-22 16:15:49,929 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-09-22 16:15:49,930 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-09-22 16:15:49,930 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-09-22 16:15:49,930 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.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df
[2024-09-22 16:15:50,190 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-22 16:15:50,215 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-22 16:15:50,218 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-22 16:15:50,219 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-22 16:15:50,224 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-22 16:15:50,225 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-09-22 16:15:51,596 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-22 16:15:51,880 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-22 16:15:51,881 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-09-22 16:15:51,903 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c5b665f92/9f1bbbdbe13b42c28341857d83277044/FLAG79053d3f8
[2024-09-22 16:15:51,918 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c5b665f92/9f1bbbdbe13b42c28341857d83277044
[2024-09-22 16:15:51,921 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-22 16:15:51,922 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-22 16:15:51,925 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-22 16:15:51,925 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-22 16:15:51,930 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-22 16:15:51,931 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 04:15:51" (1/1) ...
[2024-09-22 16:15:51,932 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e00c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:51, skipping insertion in model container
[2024-09-22 16:15:51,932 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 04:15:51" (1/1) ...
[2024-09-22 16:15:51,977 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-22 16:15:52,266 WARN  L248   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_11-ptr_racing.i[30176,30189]
[2024-09-22 16:15:52,302 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-22 16:15:52,316 INFO  L200         MainTranslator]: Completed pre-run
[2024-09-22 16:15:52,362 WARN  L248   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_11-ptr_racing.i[30176,30189]
[2024-09-22 16:15:52,371 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-22 16:15:52,418 INFO  L204         MainTranslator]: Completed translation
[2024-09-22 16:15:52,419 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52 WrapperNode
[2024-09-22 16:15:52,419 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-22 16:15:52,420 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-22 16:15:52,420 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-22 16:15:52,421 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-22 16:15:52,428 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,438 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,460 INFO  L138                Inliner]: procedures = 171, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87
[2024-09-22 16:15:52,461 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-22 16:15:52,462 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-22 16:15:52,462 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-22 16:15:52,462 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-22 16:15:52,471 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,472 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,474 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,475 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,487 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,491 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,493 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,498 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,504 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-22 16:15:52,504 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-22 16:15:52,505 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-22 16:15:52,505 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-22 16:15:52,505 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (1/1) ...
[2024-09-22 16:15:52,511 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-09-22 16:15:52,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:52,538 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)
[2024-09-22 16:15:52,541 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
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-09-22 16:15:52,583 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-09-22 16:15:52,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-09-22 16:15:52,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-22 16:15:52,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-22 16:15:52,584 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-09-22 16:15:52,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-22 16:15:52,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-22 16:15:52,586 WARN  L211             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-09-22 16:15:52,692 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-22 16:15:52,694 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-22 16:15:52,963 INFO  L287             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-09-22 16:15:52,963 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-22 16:15:53,137 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-22 16:15:53,137 INFO  L318             CfgBuilder]: Removed 10 assume(true) statements.
[2024-09-22 16:15:53,138 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 04:15:53 BoogieIcfgContainer
[2024-09-22 16:15:53,138 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-22 16:15:53,140 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-22 16:15:53,141 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-22 16:15:53,144 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-22 16:15:53,144 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 04:15:51" (1/3) ...
[2024-09-22 16:15:53,145 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6675b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 04:15:53, skipping insertion in model container
[2024-09-22 16:15:53,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 04:15:52" (2/3) ...
[2024-09-22 16:15:53,145 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6675b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 04:15:53, skipping insertion in model container
[2024-09-22 16:15:53,145 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 04:15:53" (3/3) ...
[2024-09-22 16:15:53,146 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i
[2024-09-22 16:15:53,159 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-22 16:15:53,159 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-22 16:15:53,159 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-09-22 16:15:53,188 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-09-22 16:15:53,227 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:53,227 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:53,227 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:53,231 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)
[2024-09-22 16:15:53,232 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
[2024-09-22 16:15:53,261 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:53,270 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:53,276 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:53,277 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:53,388 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:53,394 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:53,394 INFO  L85        PathProgramCache]: Analyzing trace with hash 349046995, now seen corresponding path program 1 times
[2024-09-22 16:15:53,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:53,403 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417682856]
[2024-09-22 16:15:53,403 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:53,403 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:53,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:53,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-22 16:15:53,624 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:53,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417682856]
[2024-09-22 16:15:53,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417682856] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:53,626 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:53,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:53,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386167929]
[2024-09-22 16:15:53,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:53,632 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:53,632 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:53,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:53,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:53,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:53,653 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:53,654 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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)
[2024-09-22 16:15:53,654 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:53,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:53,705 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-22 16:15:53,705 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:53,705 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:53,706 INFO  L85        PathProgramCache]: Analyzing trace with hash 1421591153, now seen corresponding path program 1 times
[2024-09-22 16:15:53,706 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:53,706 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766436148]
[2024-09-22 16:15:53,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:53,706 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:53,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:53,763 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:15:53,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:53,825 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:15:53,827 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:15:53,829 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:15:53,831 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:15:53,832 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-22 16:15:53,839 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-09-22 16:15:53,842 WARN  L239   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:15:53,842 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-09-22 16:15:53,866 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-09-22 16:15:53,872 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:53,873 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:53,873 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:53,890 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:15:53,892 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2024-09-22 16:15:53,896 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:53,898 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:53,899 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:53,899 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:54,028 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:54,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:54,029 INFO  L85        PathProgramCache]: Analyzing trace with hash -564250443, now seen corresponding path program 1 times
[2024-09-22 16:15:54,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:54,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601290258]
[2024-09-22 16:15:54,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:54,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:54,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:54,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-22 16:15:54,084 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:54,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601290258]
[2024-09-22 16:15:54,085 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601290258] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:54,085 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:54,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:54,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191533614]
[2024-09-22 16:15:54,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:54,085 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:54,086 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:54,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:54,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:54,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,087 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:54,087 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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)
[2024-09-22 16:15:54,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,271 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-22 16:15:54,271 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:54,271 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:54,272 INFO  L85        PathProgramCache]: Analyzing trace with hash -73711138, now seen corresponding path program 1 times
[2024-09-22 16:15:54,272 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:54,272 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070128982]
[2024-09-22 16:15:54,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:54,272 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:54,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:54,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-22 16:15:54,459 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:54,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070128982]
[2024-09-22 16:15:54,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070128982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:54,460 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:54,460 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:15:54,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472888842]
[2024-09-22 16:15:54,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:54,461 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:15:54,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:54,463 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:15:54,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:15:54,463 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,464 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:54,464 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2024-09-22 16:15:54,465 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,465 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,552 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:54,553 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-22 16:15:54,553 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:54,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:54,553 INFO  L85        PathProgramCache]: Analyzing trace with hash 1751897351, now seen corresponding path program 1 times
[2024-09-22 16:15:54,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:54,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356066163]
[2024-09-22 16:15:54,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:54,554 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:54,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:54,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-09-22 16:15:54,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:54,809 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356066163]
[2024-09-22 16:15:54,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356066163] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:54,810 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:54,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:15:54,810 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798671899]
[2024-09-22 16:15:54,810 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:54,813 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:15:54,813 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:54,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:15:54,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:15:54,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,814 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:54,815 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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)
[2024-09-22 16:15:54,815 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,815 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:54,815 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:54,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:54,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:15:54,867 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-22 16:15:54,867 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:54,868 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:54,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 2075562630, now seen corresponding path program 1 times
[2024-09-22 16:15:54,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:54,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885809613]
[2024-09-22 16:15:54,868 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:54,868 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:54,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:54,894 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:15:54,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:54,916 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:15:54,916 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:15:54,917 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:15:54,917 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:15:54,917 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-09-22 16:15:54,923 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:15:54,923 WARN  L239   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:15:54,923 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-09-22 16:15:54,951 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-09-22 16:15:54,954 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:54,955 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:54,955 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:54,957 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)
[2024-09-22 16:15:54,959 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
[2024-09-22 16:15:54,962 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:54,962 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:54,963 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:54,963 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:55,115 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:55,116 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:55,116 INFO  L85        PathProgramCache]: Analyzing trace with hash -1585671556, now seen corresponding path program 1 times
[2024-09-22 16:15:55,117 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:55,117 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799933752]
[2024-09-22 16:15:55,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:55,117 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:55,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:55,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-09-22 16:15:55,175 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:55,176 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799933752]
[2024-09-22 16:15:55,176 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799933752] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:55,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:55,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:55,177 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320976189]
[2024-09-22 16:15:55,177 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:55,177 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:55,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:55,178 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:55,180 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:55,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,181 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:55,181 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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)
[2024-09-22 16:15:55,181 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,413 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,414 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-22 16:15:55,414 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:55,414 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:55,415 INFO  L85        PathProgramCache]: Analyzing trace with hash -1186690040, now seen corresponding path program 1 times
[2024-09-22 16:15:55,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:55,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323702413]
[2024-09-22 16:15:55,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:55,415 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:55,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:55,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-09-22 16:15:55,495 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:55,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323702413]
[2024-09-22 16:15:55,495 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323702413] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:55,495 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:55,495 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:15:55,496 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866553714]
[2024-09-22 16:15:55,496 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:55,496 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:15:55,496 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:55,497 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:15:55,497 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:15:55,497 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,497 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:55,498 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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)
[2024-09-22 16:15:55,498 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,498 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:55,575 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-09-22 16:15:55,575 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:55,576 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:55,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -1546800532, now seen corresponding path program 1 times
[2024-09-22 16:15:55,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:55,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773817494]
[2024-09-22 16:15:55,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:55,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:55,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:55,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-09-22 16:15:55,757 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:55,757 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773817494]
[2024-09-22 16:15:55,758 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773817494] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:55,758 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:55,758 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:15:55,758 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815010012]
[2024-09-22 16:15:55,758 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:55,759 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:15:55,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:55,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:15:55,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:15:55,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,760 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:55,760 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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)
[2024-09-22 16:15:55,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:55,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:55,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:55,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:15:55,831 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-09-22 16:15:55,832 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:55,832 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:55,832 INFO  L85        PathProgramCache]: Analyzing trace with hash 737703892, now seen corresponding path program 1 times
[2024-09-22 16:15:55,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:55,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345387519]
[2024-09-22 16:15:55,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:55,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:55,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:55,854 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:15:55,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:55,880 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:15:55,880 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:15:55,880 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:15:55,880 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:15:55,881 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-09-22 16:15:55,882 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:15:55,883 WARN  L239   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:15:55,883 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-09-22 16:15:55,907 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-09-22 16:15:55,910 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:55,910 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:55,911 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:55,913 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)
[2024-09-22 16:15:55,914 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
[2024-09-22 16:15:55,916 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:55,917 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:55,917 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:55,917 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:56,071 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:56,072 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:56,072 INFO  L85        PathProgramCache]: Analyzing trace with hash -1272313157, now seen corresponding path program 1 times
[2024-09-22 16:15:56,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:56,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116544727]
[2024-09-22 16:15:56,073 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:56,073 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:56,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:56,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-09-22 16:15:56,105 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:56,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116544727]
[2024-09-22 16:15:56,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116544727] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:56,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:56,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:56,106 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238124100]
[2024-09-22 16:15:56,106 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:56,106 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:56,106 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:56,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:56,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:56,107 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,107 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:56,107 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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)
[2024-09-22 16:15:56,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,443 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-09-22 16:15:56,443 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:56,444 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:56,444 INFO  L85        PathProgramCache]: Analyzing trace with hash 1959368005, now seen corresponding path program 1 times
[2024-09-22 16:15:56,444 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:56,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539417954]
[2024-09-22 16:15:56,444 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:56,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:56,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:56,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-09-22 16:15:56,611 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:56,611 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539417954]
[2024-09-22 16:15:56,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539417954] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:56,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:56,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:15:56,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93996673]
[2024-09-22 16:15:56,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:56,612 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:15:56,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:56,612 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:15:56,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:15:56,612 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,612 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:56,613 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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)
[2024-09-22 16:15:56,613 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,613 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:56,735 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-09-22 16:15:56,735 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:56,735 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:56,736 INFO  L85        PathProgramCache]: Analyzing trace with hash -276967280, now seen corresponding path program 1 times
[2024-09-22 16:15:56,736 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:56,736 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581591722]
[2024-09-22 16:15:56,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:56,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:56,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:56,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-09-22 16:15:56,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:56,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581591722]
[2024-09-22 16:15:56,926 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581591722] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:56,926 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:56,926 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:15:56,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618384380]
[2024-09-22 16:15:56,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:56,927 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:15:56,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:56,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:15:56,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:15:56,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,929 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:56,929 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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)
[2024-09-22 16:15:56,930 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:56,930 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:56,930 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:57,031 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:57,032 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:57,032 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:15:57,032 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-09-22 16:15:57,033 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:57,033 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:57,033 INFO  L85        PathProgramCache]: Analyzing trace with hash -1212390030, now seen corresponding path program 1 times
[2024-09-22 16:15:57,033 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:57,033 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571755661]
[2024-09-22 16:15:57,033 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:57,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:57,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:57,061 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:15:57,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:57,115 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:15:57,115 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:15:57,115 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:15:57,115 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:15:57,116 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-09-22 16:15:57,117 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:15:57,118 WARN  L239   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:15:57,118 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2024-09-22 16:15:57,155 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2024-09-22 16:15:57,161 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:57,162 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:57,162 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:57,165 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:15:57,166 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process
[2024-09-22 16:15:57,168 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:57,169 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:57,169 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:57,170 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:57,376 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:57,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:57,376 INFO  L85        PathProgramCache]: Analyzing trace with hash 589691309, now seen corresponding path program 1 times
[2024-09-22 16:15:57,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:57,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470587872]
[2024-09-22 16:15:57,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:57,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:57,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:57,408 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-09-22 16:15:57,408 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:57,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470587872]
[2024-09-22 16:15:57,409 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470587872] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:57,409 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:57,409 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:57,410 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890571470]
[2024-09-22 16:15:57,410 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:57,410 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:57,410 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:57,411 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:57,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:57,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:57,411 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:57,412 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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)
[2024-09-22 16:15:57,412 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:57,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:57,879 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-09-22 16:15:57,879 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:57,880 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:57,880 INFO  L85        PathProgramCache]: Analyzing trace with hash -1601418351, now seen corresponding path program 1 times
[2024-09-22 16:15:57,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:57,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028262786]
[2024-09-22 16:15:57,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:57,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:57,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:58,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-09-22 16:15:58,025 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:58,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028262786]
[2024-09-22 16:15:58,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028262786] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:58,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:58,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:15:58,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660061280]
[2024-09-22 16:15:58,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:58,027 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:15:58,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:58,027 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:15:58,027 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:15:58,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,028 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:58,028 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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)
[2024-09-22 16:15:58,030 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,030 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:58,173 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-09-22 16:15:58,173 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:58,173 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:58,173 INFO  L85        PathProgramCache]: Analyzing trace with hash 1551820623, now seen corresponding path program 1 times
[2024-09-22 16:15:58,173 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:58,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97595696]
[2024-09-22 16:15:58,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:58,174 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:58,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:58,382 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-09-22 16:15:58,382 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:58,383 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97595696]
[2024-09-22 16:15:58,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97595696] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:58,383 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:58,383 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:15:58,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152567885]
[2024-09-22 16:15:58,383 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:58,384 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:15:58,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:58,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:15:58,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:15:58,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,385 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:58,385 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2024-09-22 16:15:58,385 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,386 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:58,386 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:58,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:15:58,487 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-09-22 16:15:58,487 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:58,487 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:58,487 INFO  L85        PathProgramCache]: Analyzing trace with hash 2139748782, now seen corresponding path program 1 times
[2024-09-22 16:15:58,488 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:58,488 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536275069]
[2024-09-22 16:15:58,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:58,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:58,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:58,509 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:15:58,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:15:58,538 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:15:58,541 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:15:58,541 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:15:58,541 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:15:58,542 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-09-22 16:15:58,543 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:15:58,543 WARN  L239   ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:15:58,543 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances.
[2024-09-22 16:15:58,573 INFO  L144    ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions.
[2024-09-22 16:15:58,576 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:58,577 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:15:58,577 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:15:58,580 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)
[2024-09-22 16:15:58,582 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
[2024-09-22 16:15:58,584 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:15:58,584 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:15:58,585 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:15:58,587 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:15:58,836 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:58,837 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:58,837 INFO  L85        PathProgramCache]: Analyzing trace with hash 700610745, now seen corresponding path program 1 times
[2024-09-22 16:15:58,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:58,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164585861]
[2024-09-22 16:15:58,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:58,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:58,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:58,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-09-22 16:15:58,860 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:58,860 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164585861]
[2024-09-22 16:15:58,860 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164585861] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:58,860 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:58,861 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:15:58,861 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880667008]
[2024-09-22 16:15:58,861 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:58,861 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:15:58,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:58,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:15:58,863 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:15:58,863 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:58,863 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:58,863 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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)
[2024-09-22 16:15:58,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,443 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-09-22 16:15:59,443 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:59,443 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:59,443 INFO  L85        PathProgramCache]: Analyzing trace with hash 1621878365, now seen corresponding path program 1 times
[2024-09-22 16:15:59,444 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:59,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625419232]
[2024-09-22 16:15:59,444 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:59,444 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:59,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:59,590 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-09-22 16:15:59,590 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:59,590 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625419232]
[2024-09-22 16:15:59,590 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625419232] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:59,590 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:59,591 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:15:59,591 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624038779]
[2024-09-22 16:15:59,591 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:59,591 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:15:59,591 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:59,592 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:15:59,592 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:15:59,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,592 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:59,593 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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)
[2024-09-22 16:15:59,593 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,593 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:59,765 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-09-22 16:15:59,765 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:15:59,765 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:15:59,765 INFO  L85        PathProgramCache]: Analyzing trace with hash 1701611098, now seen corresponding path program 1 times
[2024-09-22 16:15:59,766 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:15:59,766 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174753598]
[2024-09-22 16:15:59,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:15:59,766 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:15:59,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:15:59,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-09-22 16:15:59,989 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:15:59,989 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174753598]
[2024-09-22 16:15:59,989 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174753598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:15:59,989 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:15:59,989 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:15:59,990 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106485953]
[2024-09-22 16:15:59,990 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:15:59,990 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:15:59,990 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:15:59,991 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:15:59,991 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:15:59,991 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,991 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:15:59,991 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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)
[2024-09-22 16:15:59,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:15:59,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:15:59,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:00,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:00,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:00,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:00,137 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-09-22 16:16:00,137 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:00,138 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:00,138 INFO  L85        PathProgramCache]: Analyzing trace with hash 2117167119, now seen corresponding path program 1 times
[2024-09-22 16:16:00,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:00,138 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52309203]
[2024-09-22 16:16:00,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:00,138 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:00,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:00,203 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:00,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:00,235 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:00,236 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:00,236 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:00,236 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:00,236 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-09-22 16:16:00,238 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:00,238 WARN  L239   ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:00,238 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances.
[2024-09-22 16:16:00,270 INFO  L144    ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions.
[2024-09-22 16:16:00,272 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:00,273 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:00,273 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:00,275 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)
[2024-09-22 16:16:00,277 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
[2024-09-22 16:16:00,278 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:00,279 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:00,279 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:00,280 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:00,587 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:00,587 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:00,588 INFO  L85        PathProgramCache]: Analyzing trace with hash -1830736838, now seen corresponding path program 1 times
[2024-09-22 16:16:00,588 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:00,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670301266]
[2024-09-22 16:16:00,588 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:00,589 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:00,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:00,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2024-09-22 16:16:00,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:00,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670301266]
[2024-09-22 16:16:00,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670301266] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:00,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:00,621 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:00,621 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877938436]
[2024-09-22 16:16:00,621 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:00,621 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:00,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:00,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:00,622 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:00,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:00,623 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:00,623 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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)
[2024-09-22 16:16:00,623 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,399 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-09-22 16:16:01,399 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:01,399 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:01,400 INFO  L85        PathProgramCache]: Analyzing trace with hash -1230780738, now seen corresponding path program 1 times
[2024-09-22 16:16:01,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:01,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536034716]
[2024-09-22 16:16:01,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:01,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:01,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:01,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-09-22 16:16:01,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:01,521 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536034716]
[2024-09-22 16:16:01,521 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536034716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:01,521 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:01,521 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:01,521 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749493608]
[2024-09-22 16:16:01,521 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:01,521 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:01,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:01,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:01,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:01,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,522 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:01,522 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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)
[2024-09-22 16:16:01,522 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,523 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:01,738 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-09-22 16:16:01,738 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:01,739 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:01,739 INFO  L85        PathProgramCache]: Analyzing trace with hash 1475578936, now seen corresponding path program 1 times
[2024-09-22 16:16:01,739 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:01,739 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528984236]
[2024-09-22 16:16:01,739 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:01,739 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:01,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:01,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2024-09-22 16:16:01,980 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:01,981 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528984236]
[2024-09-22 16:16:01,981 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528984236] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:01,981 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:01,981 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:01,981 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480752204]
[2024-09-22 16:16:01,981 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:01,982 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:01,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:01,982 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:01,982 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:01,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,982 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:01,983 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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)
[2024-09-22 16:16:01,983 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:01,983 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:01,983 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:02,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:02,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:02,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:02,204 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-09-22 16:16:02,204 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:02,204 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:02,204 INFO  L85        PathProgramCache]: Analyzing trace with hash -113033109, now seen corresponding path program 1 times
[2024-09-22 16:16:02,204 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:02,204 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576638720]
[2024-09-22 16:16:02,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:02,204 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:02,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:02,242 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:02,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:02,284 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:02,284 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:02,284 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:02,284 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:02,285 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-09-22 16:16:02,286 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:02,286 WARN  L239   ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:02,286 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances.
[2024-09-22 16:16:02,316 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2024-09-22 16:16:02,318 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:02,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:02,319 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:02,321 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:02,322 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process
[2024-09-22 16:16:02,324 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:02,325 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:02,325 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:02,327 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:02,635 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:02,636 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:02,636 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237266185, now seen corresponding path program 1 times
[2024-09-22 16:16:02,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:02,636 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916776349]
[2024-09-22 16:16:02,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:02,637 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:02,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:02,666 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-09-22 16:16:02,666 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:02,666 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916776349]
[2024-09-22 16:16:02,667 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916776349] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:02,667 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:02,667 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:02,667 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24047562]
[2024-09-22 16:16:02,667 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:02,668 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:02,668 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:02,668 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:02,669 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:02,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:02,669 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:02,669 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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)
[2024-09-22 16:16:02,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:03,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:03,647 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-09-22 16:16:03,647 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:03,647 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:03,648 INFO  L85        PathProgramCache]: Analyzing trace with hash -1619654981, now seen corresponding path program 1 times
[2024-09-22 16:16:03,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:03,648 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801202428]
[2024-09-22 16:16:03,648 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:03,648 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:03,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:03,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2024-09-22 16:16:03,788 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:03,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801202428]
[2024-09-22 16:16:03,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801202428] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:03,789 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:03,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:03,789 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585631511]
[2024-09-22 16:16:03,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:03,789 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:03,790 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:03,790 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:03,790 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:03,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:03,790 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:03,791 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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)
[2024-09-22 16:16:03,791 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:03,791 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:04,066 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-09-22 16:16:04,066 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:04,066 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:04,067 INFO  L85        PathProgramCache]: Analyzing trace with hash -576779561, now seen corresponding path program 1 times
[2024-09-22 16:16:04,067 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:04,067 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57393145]
[2024-09-22 16:16:04,067 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:04,067 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:04,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:04,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2024-09-22 16:16:04,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:04,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57393145]
[2024-09-22 16:16:04,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57393145] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:04,480 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:04,480 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:04,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018362032]
[2024-09-22 16:16:04,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:04,481 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:04,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:04,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:04,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:04,482 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,482 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:04,482 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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)
[2024-09-22 16:16:04,482 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,483 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:04,483 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,714 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:04,715 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:04,715 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:04,715 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-09-22 16:16:04,715 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:04,716 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:04,716 INFO  L85        PathProgramCache]: Analyzing trace with hash 372198977, now seen corresponding path program 1 times
[2024-09-22 16:16:04,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:04,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257131021]
[2024-09-22 16:16:04,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:04,717 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:04,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:04,753 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:04,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:04,795 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:04,796 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:04,796 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:04,796 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:04,796 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-09-22 16:16:04,798 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:04,799 WARN  L239   ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:04,799 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances.
[2024-09-22 16:16:04,839 INFO  L144    ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions.
[2024-09-22 16:16:04,842 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:04,842 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:04,842 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:04,844 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)
[2024-09-22 16:16:04,846 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
[2024-09-22 16:16:04,848 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:04,849 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:04,850 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:04,851 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:05,257 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:05,258 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:05,258 INFO  L85        PathProgramCache]: Analyzing trace with hash 1007401907, now seen corresponding path program 1 times
[2024-09-22 16:16:05,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:05,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377059254]
[2024-09-22 16:16:05,259 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:05,259 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:05,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:05,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-09-22 16:16:05,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:05,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377059254]
[2024-09-22 16:16:05,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377059254] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:05,288 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:05,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:05,288 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856692636]
[2024-09-22 16:16:05,288 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:05,288 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:05,288 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:05,289 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:05,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:05,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:05,289 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:05,289 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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)
[2024-09-22 16:16:05,289 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,437 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-09-22 16:16:06,437 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:06,438 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:06,438 INFO  L85        PathProgramCache]: Analyzing trace with hash 712351011, now seen corresponding path program 1 times
[2024-09-22 16:16:06,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:06,438 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560935934]
[2024-09-22 16:16:06,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:06,438 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:06,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:06,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-09-22 16:16:06,617 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:06,617 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560935934]
[2024-09-22 16:16:06,617 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560935934] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:06,618 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:06,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:06,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002899776]
[2024-09-22 16:16:06,618 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:06,618 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:06,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:06,619 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:06,619 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:06,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,619 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:06,619 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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)
[2024-09-22 16:16:06,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:06,937 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:06,937 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-09-22 16:16:06,937 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:06,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:06,937 INFO  L85        PathProgramCache]: Analyzing trace with hash 1953114161, now seen corresponding path program 1 times
[2024-09-22 16:16:06,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:06,937 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167796522]
[2024-09-22 16:16:06,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:06,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:06,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:07,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked.
[2024-09-22 16:16:07,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:07,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167796522]
[2024-09-22 16:16:07,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167796522] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:07,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:07,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:07,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850314783]
[2024-09-22 16:16:07,301 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:07,301 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:07,301 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:07,302 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:07,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:07,302 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:07,302 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:07,302 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 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)
[2024-09-22 16:16:07,302 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:07,302 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:07,302 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:07,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:07,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:07,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:07,574 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-09-22 16:16:07,574 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:07,574 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:07,574 INFO  L85        PathProgramCache]: Analyzing trace with hash 965113651, now seen corresponding path program 1 times
[2024-09-22 16:16:07,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:07,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236831804]
[2024-09-22 16:16:07,575 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:07,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:07,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:07,611 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:07,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:07,652 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:07,652 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:07,652 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:07,652 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:07,653 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-09-22 16:16:07,654 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:07,654 WARN  L239   ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:07,654 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances.
[2024-09-22 16:16:07,686 INFO  L144    ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions.
[2024-09-22 16:16:07,688 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:07,689 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:07,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:07,691 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)
[2024-09-22 16:16:07,692 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
[2024-09-22 16:16:07,694 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:07,694 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:07,695 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:07,695 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:08,127 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:08,127 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:08,128 INFO  L85        PathProgramCache]: Analyzing trace with hash -1587450907, now seen corresponding path program 1 times
[2024-09-22 16:16:08,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:08,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445122342]
[2024-09-22 16:16:08,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:08,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:08,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:08,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-09-22 16:16:08,158 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:08,158 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445122342]
[2024-09-22 16:16:08,158 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445122342] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:08,158 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:08,158 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:08,158 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700334418]
[2024-09-22 16:16:08,159 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:08,159 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:08,159 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:08,159 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:08,160 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:08,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:08,160 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:08,160 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 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)
[2024-09-22 16:16:08,160 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:09,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:09,439 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-09-22 16:16:09,440 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:09,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:09,440 INFO  L85        PathProgramCache]: Analyzing trace with hash -648220297, now seen corresponding path program 1 times
[2024-09-22 16:16:09,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:09,440 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050456564]
[2024-09-22 16:16:09,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:09,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:09,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:09,597 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2024-09-22 16:16:09,598 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:09,598 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050456564]
[2024-09-22 16:16:09,598 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050456564] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:09,598 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:09,598 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:09,598 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052075060]
[2024-09-22 16:16:09,598 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:09,598 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:09,599 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:09,599 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:09,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:09,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:09,599 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:09,599 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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)
[2024-09-22 16:16:09,599 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:09,600 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,058 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,058 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:10,058 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-09-22 16:16:10,059 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:10,059 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:10,059 INFO  L85        PathProgramCache]: Analyzing trace with hash -337201472, now seen corresponding path program 1 times
[2024-09-22 16:16:10,059 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:10,059 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763261740]
[2024-09-22 16:16:10,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:10,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:10,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:10,515 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2024-09-22 16:16:10,516 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:10,516 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763261740]
[2024-09-22 16:16:10,516 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763261740] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:10,516 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:10,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:10,516 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272757106]
[2024-09-22 16:16:10,516 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:10,517 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:10,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:10,518 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:10,518 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:10,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,518 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:10,519 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 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)
[2024-09-22 16:16:10,519 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,519 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:10,519 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:10,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:10,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:10,831 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-09-22 16:16:10,831 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:10,831 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:10,831 INFO  L85        PathProgramCache]: Analyzing trace with hash -846087661, now seen corresponding path program 1 times
[2024-09-22 16:16:10,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:10,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453415729]
[2024-09-22 16:16:10,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:10,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:10,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:10,879 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:10,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:10,940 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:10,941 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:10,942 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:10,942 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:10,942 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-09-22 16:16:10,943 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:10,944 WARN  L239   ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:10,944 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances.
[2024-09-22 16:16:10,995 INFO  L144    ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions.
[2024-09-22 16:16:10,998 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:10,998 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:10,999 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:11,000 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:11,002 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process
[2024-09-22 16:16:11,004 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:11,005 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:11,005 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:11,005 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:11,520 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:11,520 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:11,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 369628648, now seen corresponding path program 1 times
[2024-09-22 16:16:11,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:11,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874363458]
[2024-09-22 16:16:11,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:11,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:11,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:11,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2024-09-22 16:16:11,559 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:11,559 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874363458]
[2024-09-22 16:16:11,559 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874363458] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:11,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:11,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:11,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615697939]
[2024-09-22 16:16:11,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:11,560 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:11,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:11,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:11,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:11,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:11,562 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:11,562 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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)
[2024-09-22 16:16:11,562 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:12,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:12,994 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-09-22 16:16:12,995 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:12,995 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:12,995 INFO  L85        PathProgramCache]: Analyzing trace with hash -1375264507, now seen corresponding path program 1 times
[2024-09-22 16:16:12,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:12,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665005894]
[2024-09-22 16:16:12,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:12,995 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:13,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:13,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked.
[2024-09-22 16:16:13,152 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:13,152 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665005894]
[2024-09-22 16:16:13,152 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665005894] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:13,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:13,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:13,152 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559833602]
[2024-09-22 16:16:13,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:13,153 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:13,153 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:13,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:13,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:13,154 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,154 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:13,154 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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)
[2024-09-22 16:16:13,154 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,154 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:13,596 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-09-22 16:16:13,596 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:13,597 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:13,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 472881039, now seen corresponding path program 1 times
[2024-09-22 16:16:13,597 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:13,597 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481179781]
[2024-09-22 16:16:13,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:13,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:13,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:13,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked.
[2024-09-22 16:16:13,959 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:13,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481179781]
[2024-09-22 16:16:13,960 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481179781] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:13,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:13,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:13,960 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82214456]
[2024-09-22 16:16:13,960 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:13,961 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:13,961 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:13,961 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:13,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:13,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,962 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:13,962 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 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)
[2024-09-22 16:16:13,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:13,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:13,962 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:14,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:14,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:14,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:14,294 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-09-22 16:16:14,294 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:14,294 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:14,294 INFO  L85        PathProgramCache]: Analyzing trace with hash 672679987, now seen corresponding path program 1 times
[2024-09-22 16:16:14,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:14,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907195185]
[2024-09-22 16:16:14,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:14,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:14,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:14,329 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:14,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:14,466 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:14,466 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:14,466 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:14,466 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:14,467 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-09-22 16:16:14,468 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:14,468 WARN  L239   ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:14,468 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances.
[2024-09-22 16:16:14,510 INFO  L144    ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions.
[2024-09-22 16:16:14,515 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:14,515 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:14,515 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:14,521 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:14,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process
[2024-09-22 16:16:14,525 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:14,525 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:14,525 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:14,526 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:15,009 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:15,009 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:15,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1405076821, now seen corresponding path program 1 times
[2024-09-22 16:16:15,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:15,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020826392]
[2024-09-22 16:16:15,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:15,010 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:15,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:15,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2024-09-22 16:16:15,054 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:15,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020826392]
[2024-09-22 16:16:15,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020826392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:15,054 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:15,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:15,054 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250719865]
[2024-09-22 16:16:15,054 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:15,055 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:15,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:15,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:15,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:15,056 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:15,056 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:15,056 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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)
[2024-09-22 16:16:15,057 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:16,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:16,473 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-09-22 16:16:16,473 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:16,473 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:16,473 INFO  L85        PathProgramCache]: Analyzing trace with hash -2125591357, now seen corresponding path program 1 times
[2024-09-22 16:16:16,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:16,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214116827]
[2024-09-22 16:16:16,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:16,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:16,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:16,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked.
[2024-09-22 16:16:16,789 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:16,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214116827]
[2024-09-22 16:16:16,790 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214116827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:16,790 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:16,790 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:16,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983502781]
[2024-09-22 16:16:16,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:16,790 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:16,790 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:16,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:16,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:16,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:16,791 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:16,792 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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)
[2024-09-22 16:16:16,792 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:16,792 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:17,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:17,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:17,218 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-09-22 16:16:17,218 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:17,218 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:17,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -1025385641, now seen corresponding path program 1 times
[2024-09-22 16:16:17,219 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:17,219 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975973206]
[2024-09-22 16:16:17,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:17,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:17,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:17,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked.
[2024-09-22 16:16:17,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:17,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975973206]
[2024-09-22 16:16:17,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975973206] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:17,632 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:17,632 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:17,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308659964]
[2024-09-22 16:16:17,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:17,633 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:17,633 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:17,634 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:17,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:17,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:17,634 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:17,634 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 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)
[2024-09-22 16:16:17,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:17,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:17,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:18,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:18,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:18,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:18,069 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2024-09-22 16:16:18,069 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:18,070 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:18,070 INFO  L85        PathProgramCache]: Analyzing trace with hash -1198708752, now seen corresponding path program 1 times
[2024-09-22 16:16:18,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:18,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027910173]
[2024-09-22 16:16:18,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:18,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:18,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:18,115 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:18,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:18,174 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:18,174 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:18,174 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:18,174 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:18,174 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2024-09-22 16:16:18,176 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:18,176 WARN  L239   ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:18,176 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances.
[2024-09-22 16:16:18,224 INFO  L144    ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions.
[2024-09-22 16:16:18,227 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:18,227 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:18,227 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:18,229 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:18,231 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process
[2024-09-22 16:16:18,233 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:18,234 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:18,234 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:18,234 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:18,881 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:18,881 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:18,881 INFO  L85        PathProgramCache]: Analyzing trace with hash 480768909, now seen corresponding path program 1 times
[2024-09-22 16:16:18,882 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:18,882 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3039774]
[2024-09-22 16:16:18,882 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:18,882 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:18,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:18,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2024-09-22 16:16:18,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:18,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3039774]
[2024-09-22 16:16:18,926 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3039774] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:18,927 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:18,927 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:18,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749016347]
[2024-09-22 16:16:18,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:18,928 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:18,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:18,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:18,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:18,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:18,929 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:18,929 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 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)
[2024-09-22 16:16:18,929 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:20,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:20,900 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-09-22 16:16:20,900 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:20,900 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:20,900 INFO  L85        PathProgramCache]: Analyzing trace with hash 1657910796, now seen corresponding path program 1 times
[2024-09-22 16:16:20,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:20,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112075882]
[2024-09-22 16:16:20,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:20,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:20,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:21,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked.
[2024-09-22 16:16:21,175 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:21,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112075882]
[2024-09-22 16:16:21,175 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112075882] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:21,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:21,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:21,176 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819609062]
[2024-09-22 16:16:21,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:21,177 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:21,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:21,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:21,178 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:21,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:21,178 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:21,178 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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)
[2024-09-22 16:16:21,178 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:21,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:21,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:21,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:21,831 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2024-09-22 16:16:21,831 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:21,832 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:21,832 INFO  L85        PathProgramCache]: Analyzing trace with hash 183566757, now seen corresponding path program 1 times
[2024-09-22 16:16:21,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:21,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91965369]
[2024-09-22 16:16:21,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:21,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:21,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:22,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked.
[2024-09-22 16:16:22,196 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:22,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91965369]
[2024-09-22 16:16:22,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91965369] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:22,197 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:22,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:22,198 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33143287]
[2024-09-22 16:16:22,198 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:22,198 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:22,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:22,201 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:22,201 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:22,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:22,201 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:22,202 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 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)
[2024-09-22 16:16:22,202 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:22,202 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:22,202 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:22,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:22,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:22,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:22,687 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2024-09-22 16:16:22,687 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:22,687 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:22,687 INFO  L85        PathProgramCache]: Analyzing trace with hash 556838318, now seen corresponding path program 1 times
[2024-09-22 16:16:22,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:22,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777852951]
[2024-09-22 16:16:22,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:22,688 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:22,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:22,727 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:22,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:22,789 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:22,789 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:22,790 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:22,790 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:22,790 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2024-09-22 16:16:22,792 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:22,792 WARN  L239   ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:22,792 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances.
[2024-09-22 16:16:22,837 INFO  L144    ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions.
[2024-09-22 16:16:22,840 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:22,840 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:22,840 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:22,842 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:22,844 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process
[2024-09-22 16:16:22,845 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:22,846 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:22,846 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:22,846 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:23,405 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:23,405 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:23,406 INFO  L85        PathProgramCache]: Analyzing trace with hash -4854431, now seen corresponding path program 1 times
[2024-09-22 16:16:23,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:23,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004191521]
[2024-09-22 16:16:23,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:23,406 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:23,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:23,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2024-09-22 16:16:23,436 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:23,436 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004191521]
[2024-09-22 16:16:23,436 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004191521] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:23,436 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:23,436 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:23,436 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338024503]
[2024-09-22 16:16:23,436 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:23,436 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:23,436 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:23,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:23,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:23,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:23,437 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:23,437 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 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)
[2024-09-22 16:16:23,437 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,314 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2024-09-22 16:16:25,314 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:25,314 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:25,315 INFO  L85        PathProgramCache]: Analyzing trace with hash -771582957, now seen corresponding path program 1 times
[2024-09-22 16:16:25,315 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:25,315 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376839780]
[2024-09-22 16:16:25,315 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:25,315 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:25,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:25,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked.
[2024-09-22 16:16:25,501 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:25,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376839780]
[2024-09-22 16:16:25,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376839780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:25,501 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:25,502 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:25,502 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266203872]
[2024-09-22 16:16:25,502 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:25,502 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:25,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:25,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:25,503 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:25,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,503 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:25,503 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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)
[2024-09-22 16:16:25,503 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,503 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,978 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:25,978 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:25,978 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2024-09-22 16:16:25,978 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:25,979 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:25,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -646470391, now seen corresponding path program 1 times
[2024-09-22 16:16:25,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:25,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682169838]
[2024-09-22 16:16:25,979 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:25,979 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:26,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:26,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked.
[2024-09-22 16:16:26,646 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:26,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682169838]
[2024-09-22 16:16:26,646 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682169838] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:26,647 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:26,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:26,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559939870]
[2024-09-22 16:16:26,647 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:26,647 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:26,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:26,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:26,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:26,648 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:26,648 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:26,648 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 46.0) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2024-09-22 16:16:26,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:26,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:26,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:27,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:27,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:27,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:27,090 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2024-09-22 16:16:27,090 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:27,090 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:27,090 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451212480, now seen corresponding path program 1 times
[2024-09-22 16:16:27,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:27,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169693581]
[2024-09-22 16:16:27,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:27,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:27,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:27,133 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:27,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:27,208 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:27,209 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:27,209 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:27,209 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:27,210 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-09-22 16:16:27,211 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-22 16:16:27,212 WARN  L239   ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:27,212 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances.
[2024-09-22 16:16:27,267 INFO  L144    ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions.
[2024-09-22 16:16:27,271 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:27,271 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:27,271 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:27,273 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:27,275 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process
[2024-09-22 16:16:27,277 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:27,277 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:27,278 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:27,278 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:27,900 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:27,901 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:27,901 INFO  L85        PathProgramCache]: Analyzing trace with hash -1504556202, now seen corresponding path program 1 times
[2024-09-22 16:16:27,901 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:27,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919356584]
[2024-09-22 16:16:27,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:27,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:27,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:27,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2024-09-22 16:16:27,931 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:27,931 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919356584]
[2024-09-22 16:16:27,931 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919356584] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:27,931 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:27,931 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:27,931 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760944559]
[2024-09-22 16:16:27,931 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:27,931 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:27,932 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:27,932 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:27,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:27,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:27,932 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:27,932 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 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)
[2024-09-22 16:16:27,932 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:30,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:30,292 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2024-09-22 16:16:30,292 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:30,293 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:30,293 INFO  L85        PathProgramCache]: Analyzing trace with hash 388400564, now seen corresponding path program 1 times
[2024-09-22 16:16:30,293 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:30,293 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811435620]
[2024-09-22 16:16:30,293 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:30,293 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:30,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:30,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked.
[2024-09-22 16:16:30,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:30,519 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811435620]
[2024-09-22 16:16:30,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811435620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:30,519 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:30,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:30,519 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153252432]
[2024-09-22 16:16:30,519 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:30,520 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:30,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:30,521 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:30,521 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:30,521 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:30,521 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:30,521 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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)
[2024-09-22 16:16:30,522 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:30,522 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:31,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:31,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:31,074 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2024-09-22 16:16:31,074 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:31,074 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:31,075 INFO  L85        PathProgramCache]: Analyzing trace with hash 1407372154, now seen corresponding path program 2 times
[2024-09-22 16:16:31,075 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:31,075 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063074549]
[2024-09-22 16:16:31,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:31,075 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:31,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:31,574 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked.
[2024-09-22 16:16:31,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:31,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063074549]
[2024-09-22 16:16:31,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063074549] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:31,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:31,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:31,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687028383]
[2024-09-22 16:16:31,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:31,575 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:31,576 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:31,576 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:31,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:31,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:31,577 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:31,577 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 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)
[2024-09-22 16:16:31,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:31,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:31,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:32,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:32,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:32,366 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:32,366 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2024-09-22 16:16:32,366 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:32,366 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:32,366 INFO  L85        PathProgramCache]: Analyzing trace with hash -1679596196, now seen corresponding path program 1 times
[2024-09-22 16:16:32,367 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:32,367 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238535692]
[2024-09-22 16:16:32,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:32,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:32,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:32,419 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:32,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:32,507 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:32,507 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:32,507 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:32,507 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:32,507 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2024-09-22 16:16:32,508 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:16:32,509 WARN  L239   ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:32,509 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances.
[2024-09-22 16:16:32,559 INFO  L144    ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions.
[2024-09-22 16:16:32,562 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:32,562 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:32,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:32,565 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:32,568 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process
[2024-09-22 16:16:32,570 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:32,571 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:32,571 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:32,571 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:33,282 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:33,282 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:33,282 INFO  L85        PathProgramCache]: Analyzing trace with hash -1045672313, now seen corresponding path program 1 times
[2024-09-22 16:16:33,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:33,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444787009]
[2024-09-22 16:16:33,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:33,282 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:33,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:33,314 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-09-22 16:16:33,315 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:33,315 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444787009]
[2024-09-22 16:16:33,315 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444787009] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:33,315 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:33,315 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:33,315 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330659974]
[2024-09-22 16:16:33,315 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:33,316 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:33,316 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:33,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:33,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:33,316 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:33,316 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:33,316 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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)
[2024-09-22 16:16:33,316 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:35,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:35,746 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2024-09-22 16:16:35,746 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:35,747 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:35,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -959167556, now seen corresponding path program 1 times
[2024-09-22 16:16:35,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:35,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129581614]
[2024-09-22 16:16:35,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:35,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:35,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:35,904 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2024-09-22 16:16:35,904 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:35,904 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129581614]
[2024-09-22 16:16:35,904 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129581614] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:35,904 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:35,904 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:35,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800319247]
[2024-09-22 16:16:35,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:35,905 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:35,905 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:35,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:35,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:35,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:35,905 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:35,905 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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)
[2024-09-22 16:16:35,905 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:35,905 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:36,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:36,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:36,445 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2024-09-22 16:16:36,445 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:36,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:36,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -111740984, now seen corresponding path program 2 times
[2024-09-22 16:16:36,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:36,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510888237]
[2024-09-22 16:16:36,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:36,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:36,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:36,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2024-09-22 16:16:36,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:36,987 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510888237]
[2024-09-22 16:16:36,988 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510888237] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:36,988 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:36,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:36,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726681273]
[2024-09-22 16:16:36,988 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:36,988 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:36,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:36,990 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:36,990 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:36,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:36,990 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:36,990 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 54.8) internal successors, (274), 4 states have internal predecessors, (274), 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)
[2024-09-22 16:16:36,990 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:36,990 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:36,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:37,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:37,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:37,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:37,591 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2024-09-22 16:16:37,591 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:37,591 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:37,591 INFO  L85        PathProgramCache]: Analyzing trace with hash 109826905, now seen corresponding path program 1 times
[2024-09-22 16:16:37,591 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:37,592 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456716739]
[2024-09-22 16:16:37,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:37,592 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:37,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:37,633 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:37,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:37,720 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:37,720 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:37,720 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:37,721 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:37,721 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2024-09-22 16:16:37,722 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:16:37,722 WARN  L239   ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:37,722 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances.
[2024-09-22 16:16:37,777 INFO  L144    ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions.
[2024-09-22 16:16:37,780 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:37,780 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:37,780 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:37,781 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:37,782 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process
[2024-09-22 16:16:37,784 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:37,785 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:37,785 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:37,785 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:38,513 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:38,514 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:38,514 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714892913, now seen corresponding path program 1 times
[2024-09-22 16:16:38,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:38,514 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995581779]
[2024-09-22 16:16:38,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:38,514 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:38,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:38,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-09-22 16:16:38,554 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:38,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995581779]
[2024-09-22 16:16:38,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995581779] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:38,555 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:38,555 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:38,555 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571465792]
[2024-09-22 16:16:38,555 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:38,555 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:38,555 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:38,556 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:38,556 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:38,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:38,556 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:38,556 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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)
[2024-09-22 16:16:38,556 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:41,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:41,407 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2024-09-22 16:16:41,407 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:41,407 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:41,407 INFO  L85        PathProgramCache]: Analyzing trace with hash -772914855, now seen corresponding path program 1 times
[2024-09-22 16:16:41,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:41,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578185539]
[2024-09-22 16:16:41,408 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:41,408 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:41,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:41,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2024-09-22 16:16:41,638 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:41,638 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578185539]
[2024-09-22 16:16:41,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578185539] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:41,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:41,638 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:41,638 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13239903]
[2024-09-22 16:16:41,638 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:41,639 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:41,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:41,640 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:41,640 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:41,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:41,640 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:41,641 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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)
[2024-09-22 16:16:41,641 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:41,641 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:42,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:42,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:42,334 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2024-09-22 16:16:42,334 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:42,335 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:42,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -877403775, now seen corresponding path program 2 times
[2024-09-22 16:16:42,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:42,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357742545]
[2024-09-22 16:16:42,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:42,335 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:42,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:42,691 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked.
[2024-09-22 16:16:42,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:42,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357742545]
[2024-09-22 16:16:42,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357742545] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:42,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:42,692 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:42,692 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517196119]
[2024-09-22 16:16:42,692 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:42,693 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:42,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:42,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:42,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:42,694 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:42,694 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:42,694 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 58.4) internal successors, (292), 4 states have internal predecessors, (292), 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)
[2024-09-22 16:16:42,694 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:42,694 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:42,695 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:43,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:43,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:43,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:43,389 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2024-09-22 16:16:43,389 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:43,390 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:43,390 INFO  L85        PathProgramCache]: Analyzing trace with hash -1656167278, now seen corresponding path program 1 times
[2024-09-22 16:16:43,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:43,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883773032]
[2024-09-22 16:16:43,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:43,390 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:43,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:43,444 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:43,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:43,541 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:43,541 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:43,541 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:43,542 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:43,542 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2024-09-22 16:16:43,544 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:16:43,545 WARN  L239   ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:43,545 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances.
[2024-09-22 16:16:43,602 INFO  L144    ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions.
[2024-09-22 16:16:43,605 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:43,606 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:43,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:43,608 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:43,609 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process
[2024-09-22 16:16:43,612 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:43,612 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:43,613 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:43,613 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:44,545 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:44,545 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:44,545 INFO  L85        PathProgramCache]: Analyzing trace with hash -207810923, now seen corresponding path program 1 times
[2024-09-22 16:16:44,546 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:44,546 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337795226]
[2024-09-22 16:16:44,546 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:44,546 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:44,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:44,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2024-09-22 16:16:44,583 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:44,583 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337795226]
[2024-09-22 16:16:44,583 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337795226] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:44,583 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:44,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:44,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628348860]
[2024-09-22 16:16:44,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:44,584 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:44,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:44,584 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:44,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:44,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:44,585 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:44,585 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 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)
[2024-09-22 16:16:44,585 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:47,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:47,436 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2024-09-22 16:16:47,436 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:47,437 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:47,437 INFO  L85        PathProgramCache]: Analyzing trace with hash -214368145, now seen corresponding path program 1 times
[2024-09-22 16:16:47,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:47,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788817507]
[2024-09-22 16:16:47,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:47,437 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:47,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:47,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2024-09-22 16:16:47,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:47,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788817507]
[2024-09-22 16:16:47,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788817507] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:47,633 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:47,633 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:47,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899242049]
[2024-09-22 16:16:47,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:47,633 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:47,634 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:47,634 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:47,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:47,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:47,634 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:47,635 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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)
[2024-09-22 16:16:47,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:47,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:48,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:48,180 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:48,180 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2024-09-22 16:16:48,180 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:48,180 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:48,180 INFO  L85        PathProgramCache]: Analyzing trace with hash -2114919891, now seen corresponding path program 2 times
[2024-09-22 16:16:48,180 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:48,180 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237070257]
[2024-09-22 16:16:48,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:48,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:48,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:48,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked.
[2024-09-22 16:16:48,782 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:48,782 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237070257]
[2024-09-22 16:16:48,786 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237070257] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:48,786 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:48,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:48,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803154920]
[2024-09-22 16:16:48,787 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:48,787 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:48,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:48,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:48,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:48,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:48,788 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:48,789 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 62.0) internal successors, (310), 4 states have internal predecessors, (310), 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)
[2024-09-22 16:16:48,789 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:48,789 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:48,789 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:49,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:49,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:49,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:49,891 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2024-09-22 16:16:49,891 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:49,891 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:49,891 INFO  L85        PathProgramCache]: Analyzing trace with hash 1681090533, now seen corresponding path program 1 times
[2024-09-22 16:16:49,891 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:49,891 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430302747]
[2024-09-22 16:16:49,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:49,892 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:49,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:49,958 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:50,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:50,101 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:50,101 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:50,101 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:50,101 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:50,102 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2024-09-22 16:16:50,104 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:16:50,104 WARN  L239   ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:50,104 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances.
[2024-09-22 16:16:50,165 INFO  L144    ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions.
[2024-09-22 16:16:50,169 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:50,170 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:50,170 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:50,172 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:50,173 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process
[2024-09-22 16:16:50,178 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:50,178 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:50,179 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:50,179 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:51,127 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:51,127 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:51,128 INFO  L85        PathProgramCache]: Analyzing trace with hash 903579284, now seen corresponding path program 1 times
[2024-09-22 16:16:51,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:51,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163579275]
[2024-09-22 16:16:51,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:51,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:51,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:51,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2024-09-22 16:16:51,172 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:51,172 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163579275]
[2024-09-22 16:16:51,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163579275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:51,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:51,173 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:51,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385253319]
[2024-09-22 16:16:51,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:51,173 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:51,173 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:51,173 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:51,173 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:51,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:51,174 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:51,174 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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)
[2024-09-22 16:16:51,174 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:54,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:54,281 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2024-09-22 16:16:54,281 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:54,281 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:54,281 INFO  L85        PathProgramCache]: Analyzing trace with hash -1829323341, now seen corresponding path program 1 times
[2024-09-22 16:16:54,281 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:54,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962735607]
[2024-09-22 16:16:54,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:54,281 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:54,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:54,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked.
[2024-09-22 16:16:54,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:54,637 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962735607]
[2024-09-22 16:16:54,637 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962735607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:54,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:54,638 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:16:54,638 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480857398]
[2024-09-22 16:16:54,638 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:54,638 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:16:54,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:54,639 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:16:54,639 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:16:54,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:54,639 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:54,639 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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)
[2024-09-22 16:16:54,640 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:54,640 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:55,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:55,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:55,401 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2024-09-22 16:16:55,402 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:55,402 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:55,402 INFO  L85        PathProgramCache]: Analyzing trace with hash -1069669177, now seen corresponding path program 2 times
[2024-09-22 16:16:55,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:55,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203088128]
[2024-09-22 16:16:55,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:55,402 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:55,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:55,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked.
[2024-09-22 16:16:55,847 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:55,847 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203088128]
[2024-09-22 16:16:55,847 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203088128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:55,847 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:55,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:16:55,847 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186651236]
[2024-09-22 16:16:55,848 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:55,848 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:16:55,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:55,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:16:55,849 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:16:55,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:55,849 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:55,851 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 4 states have internal predecessors, (328), 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)
[2024-09-22 16:16:55,851 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:55,851 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:55,851 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:56,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:56,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:16:56,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:16:56,877 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2024-09-22 16:16:56,878 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:56,878 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:56,878 INFO  L85        PathProgramCache]: Analyzing trace with hash -555687054, now seen corresponding path program 1 times
[2024-09-22 16:16:56,878 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:56,878 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937248880]
[2024-09-22 16:16:56,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:56,878 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:56,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:56,939 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:16:56,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:16:57,054 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:16:57,054 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:16:57,055 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:16:57,055 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:16:57,055 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2024-09-22 16:16:57,056 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:16:57,056 WARN  L239   ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:16:57,056 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances.
[2024-09-22 16:16:57,118 INFO  L144    ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions.
[2024-09-22 16:16:57,122 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:57,122 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:16:57,123 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:16:57,125 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:16:57,126 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process
[2024-09-22 16:16:57,128 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:16:57,129 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:16:57,129 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:16:57,129 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:16:58,196 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:16:58,196 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:16:58,196 INFO  L85        PathProgramCache]: Analyzing trace with hash -422175297, now seen corresponding path program 1 times
[2024-09-22 16:16:58,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:16:58,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211746672]
[2024-09-22 16:16:58,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:16:58,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:16:58,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:16:58,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked.
[2024-09-22 16:16:58,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:16:58,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211746672]
[2024-09-22 16:16:58,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211746672] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:16:58,244 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:16:58,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:16:58,244 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048823082]
[2024-09-22 16:16:58,244 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:16:58,244 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:16:58,244 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:16:58,245 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:16:58,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:16:58,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:16:58,245 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:16:58,245 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 73.0) internal successors, (146), 2 states have internal predecessors, (146), 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)
[2024-09-22 16:16:58,245 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:01,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:01,613 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2024-09-22 16:17:01,613 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:01,614 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:01,614 INFO  L85        PathProgramCache]: Analyzing trace with hash 1945545468, now seen corresponding path program 1 times
[2024-09-22 16:17:01,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:01,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823645152]
[2024-09-22 16:17:01,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:01,614 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:01,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:01,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked.
[2024-09-22 16:17:01,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:01,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823645152]
[2024-09-22 16:17:01,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823645152] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:01,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:01,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:01,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953325800]
[2024-09-22 16:17:01,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:01,808 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:01,808 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:01,809 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:01,809 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:01,809 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:01,809 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:01,810 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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)
[2024-09-22 16:17:01,810 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:01,810 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:02,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:02,608 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:02,608 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2024-09-22 16:17:02,608 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:02,608 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:02,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -1506206916, now seen corresponding path program 2 times
[2024-09-22 16:17:02,609 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:02,609 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750585191]
[2024-09-22 16:17:02,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:02,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:02,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:03,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-09-22 16:17:03,309 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:03,309 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750585191]
[2024-09-22 16:17:03,309 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750585191] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:03,309 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:03,309 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:03,310 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423041536]
[2024-09-22 16:17:03,310 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:03,310 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:03,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:03,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:03,311 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:03,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:03,311 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:03,311 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 69.2) internal successors, (346), 4 states have internal predecessors, (346), 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)
[2024-09-22 16:17:03,312 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:03,312 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:03,312 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:04,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:04,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:04,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:04,283 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2024-09-22 16:17:04,283 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:04,283 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:04,283 INFO  L85        PathProgramCache]: Analyzing trace with hash 1420630727, now seen corresponding path program 1 times
[2024-09-22 16:17:04,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:04,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145285893]
[2024-09-22 16:17:04,283 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:04,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:04,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:04,340 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:04,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:04,489 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:04,490 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:04,490 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:04,490 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:04,491 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2024-09-22 16:17:04,492 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:04,492 WARN  L239   ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:04,492 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances.
[2024-09-22 16:17:04,726 INFO  L144    ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions.
[2024-09-22 16:17:04,733 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:04,733 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:04,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:04,738 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:04,740 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process
[2024-09-22 16:17:04,744 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:04,745 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:04,746 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:04,746 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:05,891 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:05,891 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:05,892 INFO  L85        PathProgramCache]: Analyzing trace with hash 1115156877, now seen corresponding path program 1 times
[2024-09-22 16:17:05,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:05,892 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345289337]
[2024-09-22 16:17:05,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:05,892 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:05,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:05,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2024-09-22 16:17:05,934 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:05,934 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345289337]
[2024-09-22 16:17:05,934 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345289337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:05,934 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:05,935 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:05,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949836606]
[2024-09-22 16:17:05,935 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:05,935 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:05,935 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:05,935 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:05,935 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:05,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:05,936 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:05,936 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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)
[2024-09-22 16:17:05,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:09,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:09,766 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2024-09-22 16:17:09,766 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:09,766 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:09,766 INFO  L85        PathProgramCache]: Analyzing trace with hash 1363810088, now seen corresponding path program 1 times
[2024-09-22 16:17:09,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:09,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579369632]
[2024-09-22 16:17:09,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:09,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:09,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:10,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked.
[2024-09-22 16:17:10,151 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:10,151 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579369632]
[2024-09-22 16:17:10,152 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579369632] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:10,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:10,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:10,152 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249915209]
[2024-09-22 16:17:10,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:10,152 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:10,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:10,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:10,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:10,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:10,153 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:10,153 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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)
[2024-09-22 16:17:10,153 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:10,154 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:10,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:10,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:10,799 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2024-09-22 16:17:10,799 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:10,799 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:10,799 INFO  L85        PathProgramCache]: Analyzing trace with hash -640937830, now seen corresponding path program 2 times
[2024-09-22 16:17:10,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:10,800 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822483630]
[2024-09-22 16:17:10,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:10,800 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:10,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:11,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked.
[2024-09-22 16:17:11,296 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:11,296 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822483630]
[2024-09-22 16:17:11,296 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822483630] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:11,296 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:11,296 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:11,296 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412850411]
[2024-09-22 16:17:11,296 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:11,296 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:11,296 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:11,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:11,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:11,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:11,297 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:11,297 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 72.8) internal successors, (364), 4 states have internal predecessors, (364), 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)
[2024-09-22 16:17:11,297 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:11,297 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:11,298 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:12,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:12,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:12,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:12,711 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2024-09-22 16:17:12,711 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:12,712 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:12,712 INFO  L85        PathProgramCache]: Analyzing trace with hash -638903239, now seen corresponding path program 1 times
[2024-09-22 16:17:12,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:12,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496874848]
[2024-09-22 16:17:12,712 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:12,712 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:12,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:12,798 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:12,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:12,931 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:12,932 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:12,932 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:12,932 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:12,932 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2024-09-22 16:17:12,934 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:12,934 WARN  L239   ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:12,934 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances.
[2024-09-22 16:17:13,018 INFO  L144    ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions.
[2024-09-22 16:17:13,024 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:13,024 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:13,024 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:13,027 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:13,028 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (23)] Waiting until timeout for monitored process
[2024-09-22 16:17:13,030 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:13,031 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:13,031 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:13,031 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:14,341 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:14,341 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:14,341 INFO  L85        PathProgramCache]: Analyzing trace with hash -1621383539, now seen corresponding path program 1 times
[2024-09-22 16:17:14,341 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:14,341 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368671801]
[2024-09-22 16:17:14,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:14,342 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:14,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:14,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked.
[2024-09-22 16:17:14,387 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:14,387 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368671801]
[2024-09-22 16:17:14,387 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368671801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:14,387 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:14,387 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:14,388 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654507995]
[2024-09-22 16:17:14,388 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:14,388 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:14,388 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:14,388 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:14,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:14,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:14,389 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:14,389 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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)
[2024-09-22 16:17:14,389 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:18,695 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:18,695 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2024-09-22 16:17:18,695 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:18,695 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:18,695 INFO  L85        PathProgramCache]: Analyzing trace with hash -1835100078, now seen corresponding path program 1 times
[2024-09-22 16:17:18,695 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:18,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700757278]
[2024-09-22 16:17:18,696 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:18,696 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:18,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:19,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-09-22 16:17:19,047 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:19,047 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700757278]
[2024-09-22 16:17:19,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700757278] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:19,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:19,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:19,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130558324]
[2024-09-22 16:17:19,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:19,048 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:19,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:19,048 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:19,048 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:19,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:19,048 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:19,049 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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)
[2024-09-22 16:17:19,049 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:19,049 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:19,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:19,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:19,698 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2024-09-22 16:17:19,698 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:19,699 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:19,699 INFO  L85        PathProgramCache]: Analyzing trace with hash -391148730, now seen corresponding path program 2 times
[2024-09-22 16:17:19,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:19,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880631809]
[2024-09-22 16:17:19,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:19,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:19,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:20,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked.
[2024-09-22 16:17:20,208 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:20,208 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880631809]
[2024-09-22 16:17:20,208 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880631809] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:20,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:20,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:20,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379427194]
[2024-09-22 16:17:20,208 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:20,209 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:20,209 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:20,209 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:20,209 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:20,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:20,210 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:20,210 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 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)
[2024-09-22 16:17:20,210 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:20,210 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:20,210 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:21,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:21,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:21,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:21,538 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2024-09-22 16:17:21,538 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:21,538 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:21,538 INFO  L85        PathProgramCache]: Analyzing trace with hash 692222237, now seen corresponding path program 1 times
[2024-09-22 16:17:21,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:21,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069092955]
[2024-09-22 16:17:21,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:21,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:21,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:21,599 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:21,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:21,702 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:21,703 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:21,703 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:21,703 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:21,703 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2024-09-22 16:17:21,704 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:21,704 WARN  L239   ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:21,704 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances.
[2024-09-22 16:17:21,788 INFO  L144    ThreadInstanceAdder]: Constructed 23 joinOtherThreadTransitions.
[2024-09-22 16:17:21,793 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:21,794 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:21,794 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:21,797 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:21,799 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process
[2024-09-22 16:17:21,801 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:21,802 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:21,802 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:21,802 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:23,154 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:23,154 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:23,154 INFO  L85        PathProgramCache]: Analyzing trace with hash 1944825546, now seen corresponding path program 1 times
[2024-09-22 16:17:23,154 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:23,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909793626]
[2024-09-22 16:17:23,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:23,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:23,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:23,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked.
[2024-09-22 16:17:23,201 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:23,201 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909793626]
[2024-09-22 16:17:23,201 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909793626] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:23,202 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:23,202 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:23,202 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956746586]
[2024-09-22 16:17:23,202 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:23,202 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:23,202 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:23,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:23,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:23,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:23,203 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:23,203 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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)
[2024-09-22 16:17:23,203 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:27,671 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:27,671 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2024-09-22 16:17:27,671 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:27,671 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:27,671 INFO  L85        PathProgramCache]: Analyzing trace with hash 429775531, now seen corresponding path program 1 times
[2024-09-22 16:17:27,671 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:27,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846147216]
[2024-09-22 16:17:27,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:27,672 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:27,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:28,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked.
[2024-09-22 16:17:28,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:28,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846147216]
[2024-09-22 16:17:28,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846147216] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:28,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:28,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:28,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513045043]
[2024-09-22 16:17:28,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:28,118 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:28,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:28,119 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:28,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:28,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:28,119 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:28,119 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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)
[2024-09-22 16:17:28,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:28,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:28,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:28,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:28,914 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2024-09-22 16:17:28,914 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:28,914 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:28,914 INFO  L85        PathProgramCache]: Analyzing trace with hash -1353922367, now seen corresponding path program 2 times
[2024-09-22 16:17:28,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:28,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633539349]
[2024-09-22 16:17:28,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:28,915 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:29,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:29,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked.
[2024-09-22 16:17:29,445 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:29,445 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633539349]
[2024-09-22 16:17:29,445 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633539349] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:29,445 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:29,445 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:29,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045435768]
[2024-09-22 16:17:29,445 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:29,445 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:29,446 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:29,446 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:29,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:29,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:29,446 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:29,447 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 80.0) internal successors, (400), 4 states have internal predecessors, (400), 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)
[2024-09-22 16:17:29,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:29,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:29,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:30,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:30,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:30,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:30,865 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88
[2024-09-22 16:17:30,865 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:30,866 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:30,866 INFO  L85        PathProgramCache]: Analyzing trace with hash -678202945, now seen corresponding path program 1 times
[2024-09-22 16:17:30,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:30,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702386922]
[2024-09-22 16:17:30,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:30,866 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:30,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:30,933 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:30,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:31,037 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:31,038 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:31,038 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:31,038 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:31,038 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89
[2024-09-22 16:17:31,039 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:31,039 WARN  L239   ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:31,040 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances.
[2024-09-22 16:17:31,121 INFO  L144    ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions.
[2024-09-22 16:17:31,125 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:31,125 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:31,126 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:31,128 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:31,129 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process
[2024-09-22 16:17:31,133 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:31,134 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:31,134 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:31,134 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:32,772 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:32,773 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:32,773 INFO  L85        PathProgramCache]: Analyzing trace with hash 665316419, now seen corresponding path program 1 times
[2024-09-22 16:17:32,773 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:32,773 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033433745]
[2024-09-22 16:17:32,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:32,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:32,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:32,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked.
[2024-09-22 16:17:32,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:32,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033433745]
[2024-09-22 16:17:32,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033433745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:32,823 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:32,823 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:32,823 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148212144]
[2024-09-22 16:17:32,823 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:32,824 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:32,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:32,824 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:32,825 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:32,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:32,825 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:32,825 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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)
[2024-09-22 16:17:32,825 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:37,757 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:37,758 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90
[2024-09-22 16:17:37,758 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:37,758 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:37,758 INFO  L85        PathProgramCache]: Analyzing trace with hash 344200317, now seen corresponding path program 1 times
[2024-09-22 16:17:37,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:37,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771056679]
[2024-09-22 16:17:37,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:37,759 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:37,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:38,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked.
[2024-09-22 16:17:38,001 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:38,001 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771056679]
[2024-09-22 16:17:38,001 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771056679] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:38,001 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:38,001 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:38,001 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521600078]
[2024-09-22 16:17:38,001 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:38,002 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:38,002 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:38,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:38,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:38,002 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:38,003 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:38,003 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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)
[2024-09-22 16:17:38,003 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:38,003 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:38,714 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:38,714 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:38,714 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91
[2024-09-22 16:17:38,714 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:38,714 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:38,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -1719961777, now seen corresponding path program 2 times
[2024-09-22 16:17:38,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:38,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389891136]
[2024-09-22 16:17:38,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:38,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:38,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:39,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked.
[2024-09-22 16:17:39,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:39,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389891136]
[2024-09-22 16:17:39,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389891136] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:39,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:39,397 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:39,397 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850272975]
[2024-09-22 16:17:39,397 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:39,398 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:39,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:39,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:39,398 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:39,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:39,399 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:39,399 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 83.6) internal successors, (418), 4 states have internal predecessors, (418), 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)
[2024-09-22 16:17:39,399 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:39,399 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:39,399 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:40,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:40,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:40,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:40,974 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92
[2024-09-22 16:17:40,974 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:40,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:40,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 2134003248, now seen corresponding path program 1 times
[2024-09-22 16:17:40,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:40,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992690366]
[2024-09-22 16:17:40,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:40,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:41,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:41,174 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:41,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:41,279 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:41,279 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:41,280 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:41,280 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:41,280 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93
[2024-09-22 16:17:41,281 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:41,281 WARN  L239   ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:41,281 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances.
[2024-09-22 16:17:41,348 INFO  L144    ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions.
[2024-09-22 16:17:41,353 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:41,353 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:41,353 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:41,356 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:41,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process
[2024-09-22 16:17:41,360 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:41,360 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:41,361 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:41,361 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:42,934 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:42,934 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:42,934 INFO  L85        PathProgramCache]: Analyzing trace with hash -718275653, now seen corresponding path program 1 times
[2024-09-22 16:17:42,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:42,934 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718758312]
[2024-09-22 16:17:42,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:42,934 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:42,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:42,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked.
[2024-09-22 16:17:42,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:42,987 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718758312]
[2024-09-22 16:17:42,987 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718758312] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:42,987 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:42,987 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:42,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167641110]
[2024-09-22 16:17:42,988 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:42,988 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:42,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:42,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:42,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:42,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:42,988 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:42,989 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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)
[2024-09-22 16:17:42,989 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:48,801 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:48,801 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94
[2024-09-22 16:17:48,801 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:48,801 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:48,802 INFO  L85        PathProgramCache]: Analyzing trace with hash 455969979, now seen corresponding path program 1 times
[2024-09-22 16:17:48,802 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:48,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520117372]
[2024-09-22 16:17:48,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:48,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:48,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:49,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked.
[2024-09-22 16:17:49,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:49,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520117372]
[2024-09-22 16:17:49,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520117372] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:49,050 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:49,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:17:49,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252395294]
[2024-09-22 16:17:49,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:49,050 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:17:49,050 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:49,051 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:17:49,051 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:17:49,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:49,051 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:49,051 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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)
[2024-09-22 16:17:49,051 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:49,051 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:49,910 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:49,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:49,911 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95
[2024-09-22 16:17:49,911 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:49,911 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:49,911 INFO  L85        PathProgramCache]: Analyzing trace with hash 1976810157, now seen corresponding path program 2 times
[2024-09-22 16:17:49,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:49,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358749059]
[2024-09-22 16:17:49,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:49,912 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:50,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:50,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked.
[2024-09-22 16:17:50,482 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:50,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358749059]
[2024-09-22 16:17:50,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358749059] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:50,483 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:50,483 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:17:50,483 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744404359]
[2024-09-22 16:17:50,483 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:50,483 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:17:50,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:50,484 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:17:50,484 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:17:50,484 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:50,484 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:50,484 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 87.2) internal successors, (436), 4 states have internal predecessors, (436), 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)
[2024-09-22 16:17:50,484 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:50,484 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:50,485 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:52,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:52,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:17:52,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:17:52,246 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96
[2024-09-22 16:17:52,246 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:52,246 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:52,246 INFO  L85        PathProgramCache]: Analyzing trace with hash 714969246, now seen corresponding path program 1 times
[2024-09-22 16:17:52,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:52,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503147959]
[2024-09-22 16:17:52,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:52,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:52,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:52,317 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:17:52,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:17:52,469 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:17:52,469 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:17:52,469 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:17:52,469 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:17:52,469 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97
[2024-09-22 16:17:52,470 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:17:52,470 WARN  L239   ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:17:52,470 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances.
[2024-09-22 16:17:52,550 INFO  L144    ThreadInstanceAdder]: Constructed 26 joinOtherThreadTransitions.
[2024-09-22 16:17:52,555 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:52,556 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:17:52,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:17:52,558 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:17:52,559 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process
[2024-09-22 16:17:52,562 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:17:52,562 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:17:52,563 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:17:52,563 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:17:54,411 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:17:54,411 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:17:54,412 INFO  L85        PathProgramCache]: Analyzing trace with hash 655160145, now seen corresponding path program 1 times
[2024-09-22 16:17:54,412 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:17:54,412 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281958836]
[2024-09-22 16:17:54,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:17:54,412 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:17:54,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:17:54,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked.
[2024-09-22 16:17:54,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:17:54,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281958836]
[2024-09-22 16:17:54,470 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281958836] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:17:54,470 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:17:54,470 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:17:54,470 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727228423]
[2024-09-22 16:17:54,470 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:17:54,470 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:17:54,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:17:54,470 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:17:54,471 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:17:54,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:17:54,471 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:17:54,471 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 94.0) internal successors, (188), 2 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)
[2024-09-22 16:17:54,471 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:00,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:00,217 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98
[2024-09-22 16:18:00,217 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:00,217 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:00,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 1013369648, now seen corresponding path program 1 times
[2024-09-22 16:18:00,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:00,217 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989211841]
[2024-09-22 16:18:00,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:00,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:00,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:00,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked.
[2024-09-22 16:18:00,481 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:00,481 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989211841]
[2024-09-22 16:18:00,481 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989211841] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:00,481 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:00,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:18:00,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18826428]
[2024-09-22 16:18:00,482 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:00,482 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:18:00,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:00,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:18:00,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:18:00,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:00,483 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:00,483 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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)
[2024-09-22 16:18:00,483 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:00,483 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:01,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:01,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:01,207 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99
[2024-09-22 16:18:01,207 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:01,207 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:01,207 INFO  L85        PathProgramCache]: Analyzing trace with hash -299463294, now seen corresponding path program 2 times
[2024-09-22 16:18:01,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:01,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561177924]
[2024-09-22 16:18:01,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:01,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:01,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:01,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked.
[2024-09-22 16:18:01,974 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:01,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561177924]
[2024-09-22 16:18:01,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561177924] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:01,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:01,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:18:01,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502322122]
[2024-09-22 16:18:01,974 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:01,974 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:18:01,975 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:01,975 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:18:01,975 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:18:01,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:01,975 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:01,975 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 90.8) internal successors, (454), 4 states have internal predecessors, (454), 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)
[2024-09-22 16:18:01,976 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:01,976 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:01,976 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:03,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:03,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:03,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:18:03,734 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100
[2024-09-22 16:18:03,735 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:03,735 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:03,735 INFO  L85        PathProgramCache]: Analyzing trace with hash -616105948, now seen corresponding path program 1 times
[2024-09-22 16:18:03,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:03,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391925456]
[2024-09-22 16:18:03,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:03,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:03,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:03,942 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:18:03,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:04,045 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:18:04,046 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:18:04,046 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:18:04,046 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:18:04,046 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101
[2024-09-22 16:18:04,047 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:18:04,047 WARN  L239   ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:18:04,047 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances.
[2024-09-22 16:18:04,110 INFO  L144    ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions.
[2024-09-22 16:18:04,115 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:04,115 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:18:04,115 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:18:04,118 INFO  L229       MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:18:04,120 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process
[2024-09-22 16:18:04,122 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:18:04,123 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:18:04,123 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:04,123 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:18:05,902 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:05,902 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:05,902 INFO  L85        PathProgramCache]: Analyzing trace with hash 592114164, now seen corresponding path program 1 times
[2024-09-22 16:18:05,902 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:05,902 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154396665]
[2024-09-22 16:18:05,902 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:05,903 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:05,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:05,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked.
[2024-09-22 16:18:05,961 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:05,962 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154396665]
[2024-09-22 16:18:05,962 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154396665] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:05,962 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:05,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:18:05,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770119350]
[2024-09-22 16:18:05,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:05,962 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:18:05,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:05,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:18:05,963 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:18:05,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:05,963 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:05,963 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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)
[2024-09-22 16:18:05,963 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:12,447 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:12,447 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102
[2024-09-22 16:18:12,447 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:12,447 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:12,447 INFO  L85        PathProgramCache]: Analyzing trace with hash -815548, now seen corresponding path program 1 times
[2024-09-22 16:18:12,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:12,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072900516]
[2024-09-22 16:18:12,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:12,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:12,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:13,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked.
[2024-09-22 16:18:13,034 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:13,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072900516]
[2024-09-22 16:18:13,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072900516] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:13,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:13,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:18:13,035 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711816745]
[2024-09-22 16:18:13,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:13,036 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:18:13,036 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:13,038 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:18:13,038 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:18:13,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:13,039 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:13,039 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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)
[2024-09-22 16:18:13,039 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:13,039 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:13,880 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:13,880 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:13,880 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103
[2024-09-22 16:18:13,881 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:13,881 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:13,881 INFO  L85        PathProgramCache]: Analyzing trace with hash -15462558, now seen corresponding path program 2 times
[2024-09-22 16:18:13,881 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:13,881 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246623404]
[2024-09-22 16:18:13,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:13,881 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:14,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:14,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked.
[2024-09-22 16:18:14,628 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:14,628 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246623404]
[2024-09-22 16:18:14,628 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246623404] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:14,628 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:14,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:18:14,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048790147]
[2024-09-22 16:18:14,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:14,629 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:18:14,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:14,629 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:18:14,629 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:18:14,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:14,630 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:14,630 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 94.4) internal successors, (472), 4 states have internal predecessors, (472), 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)
[2024-09-22 16:18:14,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:14,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:14,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:16,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:16,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:16,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:18:16,682 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104
[2024-09-22 16:18:16,682 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:16,682 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:16,682 INFO  L85        PathProgramCache]: Analyzing trace with hash 236030824, now seen corresponding path program 1 times
[2024-09-22 16:18:16,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:16,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711604159]
[2024-09-22 16:18:16,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:16,682 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:16,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:16,761 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:18:16,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:16,876 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:18:16,877 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:18:16,877 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:18:16,877 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:18:16,877 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105
[2024-09-22 16:18:16,878 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:18:16,878 WARN  L239   ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:18:16,878 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances.
[2024-09-22 16:18:16,951 INFO  L144    ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions.
[2024-09-22 16:18:16,956 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:16,957 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:18:16,957 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:18:16,961 INFO  L229       MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:18:16,962 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (29)] Waiting until timeout for monitored process
[2024-09-22 16:18:16,964 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:18:16,964 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:18:16,964 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:16,964 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:18:19,008 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:19,009 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:19,009 INFO  L85        PathProgramCache]: Analyzing trace with hash -1799611593, now seen corresponding path program 1 times
[2024-09-22 16:18:19,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:19,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421536032]
[2024-09-22 16:18:19,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:19,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:19,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:19,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked.
[2024-09-22 16:18:19,067 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:19,067 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421536032]
[2024-09-22 16:18:19,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421536032] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:19,068 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:19,068 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:18:19,068 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523763851]
[2024-09-22 16:18:19,068 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:19,068 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:18:19,068 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:19,068 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:18:19,068 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:18:19,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:19,069 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:19,069 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 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)
[2024-09-22 16:18:19,069 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:25,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:25,523 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106
[2024-09-22 16:18:25,523 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:25,524 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:25,524 INFO  L85        PathProgramCache]: Analyzing trace with hash 1025309195, now seen corresponding path program 1 times
[2024-09-22 16:18:25,524 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:25,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348544296]
[2024-09-22 16:18:25,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:25,524 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:25,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:25,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked.
[2024-09-22 16:18:25,806 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:25,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348544296]
[2024-09-22 16:18:25,806 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348544296] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:25,806 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:25,806 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:18:25,806 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333904576]
[2024-09-22 16:18:25,806 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:25,806 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:18:25,806 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:25,807 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:18:25,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:18:25,807 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:25,807 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:25,807 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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)
[2024-09-22 16:18:25,807 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:25,808 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:26,684 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:26,685 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:26,685 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107
[2024-09-22 16:18:26,685 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:26,685 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:26,685 INFO  L85        PathProgramCache]: Analyzing trace with hash 1898062137, now seen corresponding path program 2 times
[2024-09-22 16:18:26,685 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:26,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341388113]
[2024-09-22 16:18:26,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:26,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:26,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:27,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked.
[2024-09-22 16:18:27,346 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:27,346 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341388113]
[2024-09-22 16:18:27,346 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341388113] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:27,346 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:27,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:18:27,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071034252]
[2024-09-22 16:18:27,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:27,346 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:18:27,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:27,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:18:27,347 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:18:27,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:27,347 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:27,347 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 98.0) internal successors, (490), 4 states have internal predecessors, (490), 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)
[2024-09-22 16:18:27,347 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:27,348 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:27,348 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:29,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:29,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:29,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:18:29,454 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108
[2024-09-22 16:18:29,454 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:29,454 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:29,454 INFO  L85        PathProgramCache]: Analyzing trace with hash 552745946, now seen corresponding path program 1 times
[2024-09-22 16:18:29,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:29,455 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017333111]
[2024-09-22 16:18:29,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:29,455 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:29,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:29,543 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:18:29,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:29,722 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:18:29,722 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:18:29,722 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:18:29,723 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:18:29,723 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109
[2024-09-22 16:18:29,724 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:18:29,724 WARN  L239   ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:18:29,724 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances.
[2024-09-22 16:18:29,808 INFO  L144    ThreadInstanceAdder]: Constructed 29 joinOtherThreadTransitions.
[2024-09-22 16:18:29,813 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:29,814 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:18:29,814 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:18:29,816 INFO  L229       MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:18:29,818 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process
[2024-09-22 16:18:29,821 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:18:29,821 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:18:29,821 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:29,822 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:18:32,092 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:32,093 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:32,093 INFO  L85        PathProgramCache]: Analyzing trace with hash -1302292611, now seen corresponding path program 1 times
[2024-09-22 16:18:32,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:32,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100596779]
[2024-09-22 16:18:32,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:32,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:32,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:32,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked.
[2024-09-22 16:18:32,159 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:32,159 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100596779]
[2024-09-22 16:18:32,159 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100596779] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:32,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:32,160 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:18:32,160 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333910319]
[2024-09-22 16:18:32,160 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:32,160 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:18:32,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:32,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:18:32,160 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:18:32,161 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:32,161 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:32,161 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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)
[2024-09-22 16:18:32,161 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:39,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:39,804 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110
[2024-09-22 16:18:39,804 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:39,804 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:39,804 INFO  L85        PathProgramCache]: Analyzing trace with hash -1505687601, now seen corresponding path program 1 times
[2024-09-22 16:18:39,804 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:39,804 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873359715]
[2024-09-22 16:18:39,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:39,805 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:39,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:40,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked.
[2024-09-22 16:18:40,089 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:40,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873359715]
[2024-09-22 16:18:40,089 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873359715] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:40,089 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:40,089 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:18:40,089 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183264085]
[2024-09-22 16:18:40,089 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:40,089 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:18:40,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:40,090 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:18:40,090 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:18:40,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:40,090 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:40,090 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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)
[2024-09-22 16:18:40,090 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:40,091 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:40,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:40,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:40,882 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111
[2024-09-22 16:18:40,882 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:40,882 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:40,882 INFO  L85        PathProgramCache]: Analyzing trace with hash 156980727, now seen corresponding path program 2 times
[2024-09-22 16:18:40,882 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:40,882 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040419525]
[2024-09-22 16:18:40,882 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:40,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:41,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:41,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked.
[2024-09-22 16:18:41,711 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:41,711 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040419525]
[2024-09-22 16:18:41,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040419525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:41,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:41,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:18:41,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131629869]
[2024-09-22 16:18:41,711 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:41,712 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:18:41,712 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:41,712 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:18:41,712 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:18:41,712 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:41,713 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:41,713 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 101.6) internal successors, (508), 4 states have internal predecessors, (508), 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)
[2024-09-22 16:18:41,713 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:41,713 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:41,713 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:44,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:44,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:44,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:18:44,119 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112
[2024-09-22 16:18:44,119 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:44,119 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:44,119 INFO  L85        PathProgramCache]: Analyzing trace with hash 1987000170, now seen corresponding path program 1 times
[2024-09-22 16:18:44,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:44,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704928065]
[2024-09-22 16:18:44,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:44,119 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:44,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:44,231 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:18:44,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:18:44,411 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:18:44,412 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:18:44,412 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:18:44,412 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:18:44,412 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113
[2024-09-22 16:18:44,413 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:18:44,413 WARN  L239   ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:18:44,413 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances.
[2024-09-22 16:18:44,506 INFO  L144    ThreadInstanceAdder]: Constructed 30 joinOtherThreadTransitions.
[2024-09-22 16:18:44,511 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:44,511 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:18:44,512 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:18:44,515 INFO  L229       MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:18:44,516 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (31)] Waiting until timeout for monitored process
[2024-09-22 16:18:44,518 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:18:44,518 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:18:44,519 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:18:44,519 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:18:47,026 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:47,026 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:47,027 INFO  L85        PathProgramCache]: Analyzing trace with hash 324958393, now seen corresponding path program 1 times
[2024-09-22 16:18:47,027 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:47,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887657189]
[2024-09-22 16:18:47,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:47,027 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:47,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:47,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked.
[2024-09-22 16:18:47,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:47,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887657189]
[2024-09-22 16:18:47,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887657189] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:47,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:47,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:18:47,093 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758769822]
[2024-09-22 16:18:47,093 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:47,093 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:18:47,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:47,094 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:18:47,094 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:18:47,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:47,094 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:47,094 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-22 16:18:47,094 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:55,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:55,484 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114
[2024-09-22 16:18:55,484 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:55,484 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:55,484 INFO  L85        PathProgramCache]: Analyzing trace with hash 1523361951, now seen corresponding path program 1 times
[2024-09-22 16:18:55,484 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:55,484 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372800960]
[2024-09-22 16:18:55,485 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:55,485 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:55,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:55,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked.
[2024-09-22 16:18:55,787 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:55,787 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372800960]
[2024-09-22 16:18:55,787 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372800960] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:55,787 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:55,787 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:18:55,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652312505]
[2024-09-22 16:18:55,787 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:55,788 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:18:55,788 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:55,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:18:55,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:18:55,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:55,789 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:55,789 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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)
[2024-09-22 16:18:55,789 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:55,789 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:56,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:56,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:56,875 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115
[2024-09-22 16:18:56,875 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:18:56,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:18:56,876 INFO  L85        PathProgramCache]: Analyzing trace with hash -1956281019, now seen corresponding path program 2 times
[2024-09-22 16:18:56,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:18:56,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908038022]
[2024-09-22 16:18:56,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:18:56,876 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:18:57,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:18:57,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked.
[2024-09-22 16:18:57,641 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:18:57,641 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908038022]
[2024-09-22 16:18:57,641 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908038022] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:18:57,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:18:57,642 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:18:57,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400650636]
[2024-09-22 16:18:57,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:18:57,642 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:18:57,642 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:18:57,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:18:57,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:18:57,643 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:57,643 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:18:57,643 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 105.2) internal successors, (526), 4 states have internal predecessors, (526), 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)
[2024-09-22 16:18:57,643 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:18:57,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:18:57,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:00,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:00,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:00,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:19:00,440 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116
[2024-09-22 16:19:00,440 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:00,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:00,441 INFO  L85        PathProgramCache]: Analyzing trace with hash -1986041685, now seen corresponding path program 1 times
[2024-09-22 16:19:00,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:00,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573988959]
[2024-09-22 16:19:00,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:00,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:00,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:00,539 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:19:00,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:00,727 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:19:00,727 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:19:00,727 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:19:00,727 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:19:00,727 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117
[2024-09-22 16:19:00,728 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:19:00,728 WARN  L239   ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:19:00,728 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances.
[2024-09-22 16:19:00,967 INFO  L144    ThreadInstanceAdder]: Constructed 31 joinOtherThreadTransitions.
[2024-09-22 16:19:00,972 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:00,972 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:19:00,972 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:19:00,975 INFO  L229       MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:19:00,977 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (32)] Waiting until timeout for monitored process
[2024-09-22 16:19:00,979 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:19:00,979 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:19:00,980 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:00,980 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:19:03,489 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:03,489 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:03,489 INFO  L85        PathProgramCache]: Analyzing trace with hash -891346034, now seen corresponding path program 1 times
[2024-09-22 16:19:03,489 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:03,489 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995458525]
[2024-09-22 16:19:03,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:03,490 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:03,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:03,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked.
[2024-09-22 16:19:03,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:03,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995458525]
[2024-09-22 16:19:03,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995458525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:03,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:03,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:19:03,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803979977]
[2024-09-22 16:19:03,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:03,561 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:19:03,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:03,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:19:03,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:19:03,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:03,561 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:03,561 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-22 16:19:03,561 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:12,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:12,028 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118
[2024-09-22 16:19:12,028 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:12,028 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:12,028 INFO  L85        PathProgramCache]: Analyzing trace with hash -350440380, now seen corresponding path program 1 times
[2024-09-22 16:19:12,028 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:12,028 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028403123]
[2024-09-22 16:19:12,028 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:12,028 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:12,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:12,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked.
[2024-09-22 16:19:12,485 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:12,485 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028403123]
[2024-09-22 16:19:12,486 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028403123] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:12,486 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:12,486 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:19:12,486 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788403353]
[2024-09-22 16:19:12,486 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:12,486 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:19:12,486 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:12,487 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:19:12,487 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:19:12,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:12,487 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:12,487 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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)
[2024-09-22 16:19:12,487 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:12,487 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:13,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:13,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:13,437 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119
[2024-09-22 16:19:13,437 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:13,438 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:13,438 INFO  L85        PathProgramCache]: Analyzing trace with hash -1606860168, now seen corresponding path program 2 times
[2024-09-22 16:19:13,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:13,438 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666474070]
[2024-09-22 16:19:13,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:13,438 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:13,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:14,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked.
[2024-09-22 16:19:14,259 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:14,259 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666474070]
[2024-09-22 16:19:14,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666474070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:14,259 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:14,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:19:14,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576047894]
[2024-09-22 16:19:14,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:14,260 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:19:14,260 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:14,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:19:14,261 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:19:14,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:14,261 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:14,261 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 108.8) internal successors, (544), 4 states have internal predecessors, (544), 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)
[2024-09-22 16:19:14,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:14,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:14,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:17,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:17,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:17,077 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:19:17,077 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120
[2024-09-22 16:19:17,077 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:17,077 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:17,077 INFO  L85        PathProgramCache]: Analyzing trace with hash 697308938, now seen corresponding path program 1 times
[2024-09-22 16:19:17,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:17,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847822417]
[2024-09-22 16:19:17,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:17,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:17,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:17,177 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:19:17,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:17,394 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:19:17,394 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:19:17,394 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:19:17,394 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:19:17,394 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121
[2024-09-22 16:19:17,395 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:19:17,395 WARN  L239   ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:19:17,395 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances.
[2024-09-22 16:19:17,487 INFO  L144    ThreadInstanceAdder]: Constructed 32 joinOtherThreadTransitions.
[2024-09-22 16:19:17,493 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:17,493 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:19:17,493 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:19:17,495 INFO  L229       MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:19:17,496 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process
[2024-09-22 16:19:17,499 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:19:17,501 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:19:17,501 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:17,501 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:19:20,328 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:20,328 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:20,328 INFO  L85        PathProgramCache]: Analyzing trace with hash -956094493, now seen corresponding path program 1 times
[2024-09-22 16:19:20,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:20,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886192121]
[2024-09-22 16:19:20,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:20,328 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:20,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:20,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked.
[2024-09-22 16:19:20,402 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:20,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886192121]
[2024-09-22 16:19:20,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886192121] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:20,402 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:20,402 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:19:20,402 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101471562]
[2024-09-22 16:19:20,402 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:20,402 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:19:20,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:20,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:19:20,403 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:19:20,403 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:20,403 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:20,403 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 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)
[2024-09-22 16:19:20,403 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:29,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:29,307 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122
[2024-09-22 16:19:29,307 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:29,307 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:29,307 INFO  L85        PathProgramCache]: Analyzing trace with hash 2004612729, now seen corresponding path program 1 times
[2024-09-22 16:19:29,307 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:29,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148723765]
[2024-09-22 16:19:29,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:29,308 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:29,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:29,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked.
[2024-09-22 16:19:29,936 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:29,936 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148723765]
[2024-09-22 16:19:29,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148723765] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:29,936 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:29,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:19:29,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454985972]
[2024-09-22 16:19:29,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:29,937 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:19:29,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:29,938 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:19:29,938 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:19:29,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:29,938 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:29,938 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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)
[2024-09-22 16:19:29,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:29,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:30,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:30,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:30,813 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123
[2024-09-22 16:19:30,813 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:30,813 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:30,813 INFO  L85        PathProgramCache]: Analyzing trace with hash 805176827, now seen corresponding path program 2 times
[2024-09-22 16:19:30,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:30,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994869270]
[2024-09-22 16:19:30,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:30,814 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:31,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:31,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked.
[2024-09-22 16:19:31,694 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:31,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994869270]
[2024-09-22 16:19:31,697 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994869270] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:31,697 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:31,697 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:19:31,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889016177]
[2024-09-22 16:19:31,697 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:31,698 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:19:31,698 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:31,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:19:31,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:19:31,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:31,699 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:31,701 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 112.4) internal successors, (562), 4 states have internal predecessors, (562), 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)
[2024-09-22 16:19:31,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:31,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:31,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:34,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:34,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:34,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:19:34,928 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124
[2024-09-22 16:19:34,928 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:34,928 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:34,928 INFO  L85        PathProgramCache]: Analyzing trace with hash 1364852145, now seen corresponding path program 1 times
[2024-09-22 16:19:34,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:34,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099611123]
[2024-09-22 16:19:34,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:34,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:35,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:35,034 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:19:35,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:35,219 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:19:35,219 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:19:35,220 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:19:35,220 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:19:35,220 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125
[2024-09-22 16:19:35,220 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:19:35,221 WARN  L239   ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:19:35,221 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances.
[2024-09-22 16:19:35,324 INFO  L144    ThreadInstanceAdder]: Constructed 33 joinOtherThreadTransitions.
[2024-09-22 16:19:35,329 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:35,329 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:19:35,329 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:19:35,331 INFO  L229       MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:19:35,333 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process
[2024-09-22 16:19:35,336 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:19:35,337 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:19:35,337 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:35,337 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:19:38,181 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:38,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:38,181 INFO  L85        PathProgramCache]: Analyzing trace with hash -1588919425, now seen corresponding path program 1 times
[2024-09-22 16:19:38,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:38,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224091538]
[2024-09-22 16:19:38,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:38,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:38,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:38,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked.
[2024-09-22 16:19:38,275 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:38,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224091538]
[2024-09-22 16:19:38,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224091538] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:38,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:38,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:19:38,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022282525]
[2024-09-22 16:19:38,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:38,276 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:19:38,276 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:38,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:19:38,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:19:38,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:38,277 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:38,277 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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)
[2024-09-22 16:19:38,277 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:47,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:47,761 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126
[2024-09-22 16:19:47,762 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:47,762 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:47,762 INFO  L85        PathProgramCache]: Analyzing trace with hash -810769880, now seen corresponding path program 1 times
[2024-09-22 16:19:47,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:47,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348342124]
[2024-09-22 16:19:47,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:47,762 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:47,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:48,293 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked.
[2024-09-22 16:19:48,294 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:48,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348342124]
[2024-09-22 16:19:48,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348342124] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:48,294 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:48,294 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:19:48,294 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600882397]
[2024-09-22 16:19:48,294 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:48,295 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:19:48,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:48,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:19:48,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:19:48,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:48,296 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:48,296 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 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)
[2024-09-22 16:19:48,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:48,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:49,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:49,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:49,466 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127
[2024-09-22 16:19:49,466 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:49,466 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:49,466 INFO  L85        PathProgramCache]: Analyzing trace with hash -1758292856, now seen corresponding path program 2 times
[2024-09-22 16:19:49,466 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:49,466 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933398509]
[2024-09-22 16:19:49,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:49,467 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:49,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:50,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-09-22 16:19:50,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:50,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933398509]
[2024-09-22 16:19:50,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933398509] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:50,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:50,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:19:50,364 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014992542]
[2024-09-22 16:19:50,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:50,364 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:19:50,364 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:50,365 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:19:50,365 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:19:50,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:50,365 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:50,366 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 116.0) internal successors, (580), 4 states have internal predecessors, (580), 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)
[2024-09-22 16:19:50,366 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:50,366 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:50,366 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:53,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:53,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:19:53,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:19:53,698 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128
[2024-09-22 16:19:53,698 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:53,698 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:53,699 INFO  L85        PathProgramCache]: Analyzing trace with hash 1484829361, now seen corresponding path program 1 times
[2024-09-22 16:19:53,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:53,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999677854]
[2024-09-22 16:19:53,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:53,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:53,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:53,816 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:19:53,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:19:54,020 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:19:54,020 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:19:54,020 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:19:54,020 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:19:54,020 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129
[2024-09-22 16:19:54,021 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:19:54,021 WARN  L239   ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:19:54,021 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances.
[2024-09-22 16:19:54,111 INFO  L144    ThreadInstanceAdder]: Constructed 34 joinOtherThreadTransitions.
[2024-09-22 16:19:54,116 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:54,117 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:19:54,117 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:19:54,119 INFO  L229       MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:19:54,121 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (35)] Waiting until timeout for monitored process
[2024-09-22 16:19:54,124 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:19:54,125 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:19:54,126 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:19:54,126 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:19:57,184 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:19:57,184 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:19:57,184 INFO  L85        PathProgramCache]: Analyzing trace with hash 1539706757, now seen corresponding path program 1 times
[2024-09-22 16:19:57,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:19:57,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529310883]
[2024-09-22 16:19:57,185 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:19:57,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:19:57,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:19:57,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked.
[2024-09-22 16:19:57,262 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:19:57,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529310883]
[2024-09-22 16:19:57,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529310883] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:19:57,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:19:57,263 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:19:57,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459445894]
[2024-09-22 16:19:57,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:19:57,263 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:19:57,263 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:19:57,263 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:19:57,263 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:19:57,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:19:57,264 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:19:57,264 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 122.0) internal successors, (244), 2 states have internal predecessors, (244), 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)
[2024-09-22 16:19:57,264 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:07,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:07,993 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130
[2024-09-22 16:20:07,993 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:07,993 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:07,994 INFO  L85        PathProgramCache]: Analyzing trace with hash 806096692, now seen corresponding path program 1 times
[2024-09-22 16:20:07,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:07,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108940491]
[2024-09-22 16:20:07,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:07,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:08,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:08,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked.
[2024-09-22 16:20:08,429 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:08,429 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108940491]
[2024-09-22 16:20:08,429 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108940491] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:08,429 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:08,429 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:20:08,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849399871]
[2024-09-22 16:20:08,429 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:08,430 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:20:08,430 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:08,431 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:20:08,431 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:20:08,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:08,431 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:08,431 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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)
[2024-09-22 16:20:08,431 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:08,431 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:09,536 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:09,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:09,537 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131
[2024-09-22 16:20:09,537 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:09,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:09,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -1669382478, now seen corresponding path program 2 times
[2024-09-22 16:20:09,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:09,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129779070]
[2024-09-22 16:20:09,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:09,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:09,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:10,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked.
[2024-09-22 16:20:10,694 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:10,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129779070]
[2024-09-22 16:20:10,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129779070] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:10,694 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:10,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:20:10,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209659531]
[2024-09-22 16:20:10,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:10,695 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:20:10,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:10,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:20:10,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:20:10,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:10,700 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:10,700 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 119.6) internal successors, (598), 4 states have internal predecessors, (598), 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)
[2024-09-22 16:20:10,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:10,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:10,701 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:14,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:14,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:14,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:20:14,277 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132
[2024-09-22 16:20:14,278 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:14,278 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:14,278 INFO  L85        PathProgramCache]: Analyzing trace with hash -855345880, now seen corresponding path program 1 times
[2024-09-22 16:20:14,278 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:14,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027123856]
[2024-09-22 16:20:14,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:14,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:14,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:14,388 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:20:14,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:14,578 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:20:14,578 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:20:14,578 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:20:14,578 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:20:14,579 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133
[2024-09-22 16:20:14,579 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:20:14,579 WARN  L239   ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:20:14,579 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances.
[2024-09-22 16:20:14,691 INFO  L144    ThreadInstanceAdder]: Constructed 35 joinOtherThreadTransitions.
[2024-09-22 16:20:14,698 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:14,698 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:20:14,698 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:20:14,700 INFO  L229       MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:20:14,701 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (36)] Waiting until timeout for monitored process
[2024-09-22 16:20:14,704 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:20:14,705 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:20:14,705 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:14,705 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:20:18,132 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:18,132 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:18,132 INFO  L85        PathProgramCache]: Analyzing trace with hash -372855520, now seen corresponding path program 1 times
[2024-09-22 16:20:18,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:18,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767483329]
[2024-09-22 16:20:18,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:18,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:18,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:18,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked.
[2024-09-22 16:20:18,213 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:18,213 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767483329]
[2024-09-22 16:20:18,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767483329] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:18,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:18,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:20:18,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586712471]
[2024-09-22 16:20:18,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:18,214 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:20:18,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:18,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:20:18,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:20:18,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:18,214 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:18,215 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 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)
[2024-09-22 16:20:18,215 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:28,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:28,948 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134
[2024-09-22 16:20:28,948 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:28,948 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:28,948 INFO  L85        PathProgramCache]: Analyzing trace with hash 1625721401, now seen corresponding path program 1 times
[2024-09-22 16:20:28,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:28,949 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530585646]
[2024-09-22 16:20:28,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:28,949 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:29,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:29,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked.
[2024-09-22 16:20:29,358 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:29,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530585646]
[2024-09-22 16:20:29,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530585646] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:29,358 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:29,358 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:20:29,358 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267800268]
[2024-09-22 16:20:29,359 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:29,359 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:20:29,359 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:29,360 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:20:29,360 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:20:29,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:29,360 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:29,360 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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)
[2024-09-22 16:20:29,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:29,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:30,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:30,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:30,442 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135
[2024-09-22 16:20:30,442 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:30,442 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:30,442 INFO  L85        PathProgramCache]: Analyzing trace with hash -703110643, now seen corresponding path program 2 times
[2024-09-22 16:20:30,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:30,442 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48230008]
[2024-09-22 16:20:30,442 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:30,442 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:30,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:31,385 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked.
[2024-09-22 16:20:31,386 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:31,386 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48230008]
[2024-09-22 16:20:31,386 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48230008] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:31,386 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:31,386 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:20:31,386 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438697076]
[2024-09-22 16:20:31,386 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:31,387 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:20:31,387 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:31,387 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:20:31,387 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:20:31,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:31,387 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:31,388 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 123.2) internal successors, (616), 4 states have internal predecessors, (616), 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)
[2024-09-22 16:20:31,388 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:31,388 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:31,388 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:35,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:35,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:35,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:20:35,247 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136
[2024-09-22 16:20:35,247 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:35,247 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:35,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -879128619, now seen corresponding path program 1 times
[2024-09-22 16:20:35,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:35,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644311962]
[2024-09-22 16:20:35,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:35,247 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:35,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:35,370 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:20:35,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:35,578 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:20:35,578 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:20:35,578 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:20:35,578 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:20:35,578 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137
[2024-09-22 16:20:35,579 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:20:35,579 WARN  L239   ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:20:35,579 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances.
[2024-09-22 16:20:35,669 INFO  L144    ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions.
[2024-09-22 16:20:35,674 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:35,674 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:20:35,674 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:20:35,676 INFO  L229       MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:20:35,678 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (37)] Waiting until timeout for monitored process
[2024-09-22 16:20:35,680 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:20:35,681 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:20:35,681 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:35,681 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:20:39,265 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:39,265 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:39,265 INFO  L85        PathProgramCache]: Analyzing trace with hash -908578413, now seen corresponding path program 1 times
[2024-09-22 16:20:39,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:39,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436654303]
[2024-09-22 16:20:39,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:39,266 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:39,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:39,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked.
[2024-09-22 16:20:39,350 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:39,350 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436654303]
[2024-09-22 16:20:39,350 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436654303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:39,350 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:39,350 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:20:39,350 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979735874]
[2024-09-22 16:20:39,351 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:39,351 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:20:39,351 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:39,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:20:39,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:20:39,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:39,351 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:39,351 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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)
[2024-09-22 16:20:39,352 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:50,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:50,936 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138
[2024-09-22 16:20:50,936 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:50,936 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:50,936 INFO  L85        PathProgramCache]: Analyzing trace with hash -534737451, now seen corresponding path program 1 times
[2024-09-22 16:20:50,936 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:50,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45163422]
[2024-09-22 16:20:50,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:50,937 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:51,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:51,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked.
[2024-09-22 16:20:51,484 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:51,484 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45163422]
[2024-09-22 16:20:51,484 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45163422] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:51,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:51,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:20:51,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122483274]
[2024-09-22 16:20:51,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:51,485 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:20:51,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:51,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:20:51,485 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:20:51,485 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:51,486 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:51,486 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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)
[2024-09-22 16:20:51,486 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:51,486 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:52,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:52,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:52,567 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139
[2024-09-22 16:20:52,567 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:52,567 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:52,567 INFO  L85        PathProgramCache]: Analyzing trace with hash 1664241911, now seen corresponding path program 2 times
[2024-09-22 16:20:52,567 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:52,568 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404428458]
[2024-09-22 16:20:52,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:52,568 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:52,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:20:53,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked.
[2024-09-22 16:20:53,587 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:20:53,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404428458]
[2024-09-22 16:20:53,587 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404428458] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:20:53,587 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:20:53,587 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:20:53,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191649358]
[2024-09-22 16:20:53,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:20:53,587 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:20:53,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:20:53,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:20:53,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:20:53,588 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:53,588 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:20:53,588 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.8) internal successors, (634), 4 states have internal predecessors, (634), 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)
[2024-09-22 16:20:53,588 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:53,588 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:53,589 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:57,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:20:57,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:20:57,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:20:57,777 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140
[2024-09-22 16:20:57,777 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:20:57,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:20:57,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -1011983592, now seen corresponding path program 1 times
[2024-09-22 16:20:57,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:20:57,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224138515]
[2024-09-22 16:20:57,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:20:57,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:20:57,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:57,905 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:20:58,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:20:58,212 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:20:58,212 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:20:58,213 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:20:58,213 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:20:58,213 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141
[2024-09-22 16:20:58,214 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:20:58,214 WARN  L239   ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:20:58,214 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances.
[2024-09-22 16:20:58,331 INFO  L144    ThreadInstanceAdder]: Constructed 37 joinOtherThreadTransitions.
[2024-09-22 16:20:58,337 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:58,337 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:20:58,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:20:58,340 INFO  L229       MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:20:58,341 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (38)] Waiting until timeout for monitored process
[2024-09-22 16:20:58,344 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:20:58,344 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:20:58,344 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:20:58,345 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:21:02,234 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:02,234 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:02,234 INFO  L85        PathProgramCache]: Analyzing trace with hash -1543989423, now seen corresponding path program 1 times
[2024-09-22 16:21:02,234 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:02,234 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261541563]
[2024-09-22 16:21:02,234 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:02,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:02,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:02,336 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked.
[2024-09-22 16:21:02,336 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:02,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261541563]
[2024-09-22 16:21:02,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261541563] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:02,337 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:02,337 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:21:02,337 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066571583]
[2024-09-22 16:21:02,337 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:02,337 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:21:02,337 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:02,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:21:02,338 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:21:02,338 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:02,338 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:02,338 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 132.5) internal successors, (265), 2 states have internal predecessors, (265), 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)
[2024-09-22 16:21:02,338 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:15,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:15,295 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142
[2024-09-22 16:21:15,295 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:15,295 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:15,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 973071951, now seen corresponding path program 1 times
[2024-09-22 16:21:15,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:15,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222514571]
[2024-09-22 16:21:15,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:15,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:15,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:15,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked.
[2024-09-22 16:21:15,694 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:15,695 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222514571]
[2024-09-22 16:21:15,695 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222514571] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:15,695 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:15,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:21:15,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498208173]
[2024-09-22 16:21:15,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:15,696 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:21:15,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:15,696 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:21:15,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:21:15,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:15,697 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:15,697 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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)
[2024-09-22 16:21:15,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:15,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:16,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:16,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:16,909 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143
[2024-09-22 16:21:16,909 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:16,909 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:16,909 INFO  L85        PathProgramCache]: Analyzing trace with hash -2092845629, now seen corresponding path program 2 times
[2024-09-22 16:21:16,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:16,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456373424]
[2024-09-22 16:21:16,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:16,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:17,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:17,955 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 1856 trivial. 0 not checked.
[2024-09-22 16:21:17,955 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:17,955 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456373424]
[2024-09-22 16:21:17,955 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456373424] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:17,955 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:17,955 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:21:17,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625517283]
[2024-09-22 16:21:17,956 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:17,956 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:21:17,956 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:17,956 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:21:17,957 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:21:17,957 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:17,957 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:17,957 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 130.4) internal successors, (652), 4 states have internal predecessors, (652), 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)
[2024-09-22 16:21:17,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:17,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:17,957 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:22,356 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:22,356 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:22,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:21:22,357 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144
[2024-09-22 16:21:22,357 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:22,357 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:22,357 INFO  L85        PathProgramCache]: Analyzing trace with hash -921257528, now seen corresponding path program 1 times
[2024-09-22 16:21:22,357 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:22,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826116929]
[2024-09-22 16:21:22,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:22,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:22,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:21:22,594 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:21:22,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:21:22,834 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:21:22,834 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:21:22,834 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:21:22,834 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:21:22,834 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145
[2024-09-22 16:21:22,835 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:21:22,835 WARN  L239   ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:21:22,835 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances.
[2024-09-22 16:21:22,931 INFO  L144    ThreadInstanceAdder]: Constructed 38 joinOtherThreadTransitions.
[2024-09-22 16:21:22,937 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:21:22,938 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:21:22,938 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:21:22,942 INFO  L229       MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:21:22,943 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (39)] Waiting until timeout for monitored process
[2024-09-22 16:21:22,946 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:21:22,947 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:21:22,947 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:21:22,947 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:21:26,636 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:26,636 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:26,637 INFO  L85        PathProgramCache]: Analyzing trace with hash -112976283, now seen corresponding path program 1 times
[2024-09-22 16:21:26,637 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:26,637 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118141522]
[2024-09-22 16:21:26,637 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:26,637 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:26,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:26,724 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked.
[2024-09-22 16:21:26,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:26,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118141522]
[2024-09-22 16:21:26,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118141522] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:26,725 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:26,725 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:21:26,726 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719266526]
[2024-09-22 16:21:26,726 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:26,727 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:21:26,727 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:26,727 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:21:26,727 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:21:26,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:26,727 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:26,727 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 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)
[2024-09-22 16:21:26,727 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:39,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:39,453 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146
[2024-09-22 16:21:39,453 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:39,453 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:39,454 INFO  L85        PathProgramCache]: Analyzing trace with hash -1070280734, now seen corresponding path program 1 times
[2024-09-22 16:21:39,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:39,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522311434]
[2024-09-22 16:21:39,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:39,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:39,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:39,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked.
[2024-09-22 16:21:39,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:39,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522311434]
[2024-09-22 16:21:39,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522311434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:39,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:39,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:21:39,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943715266]
[2024-09-22 16:21:39,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:39,972 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:21:39,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:39,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:21:39,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:21:39,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:39,973 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:39,973 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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)
[2024-09-22 16:21:39,973 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:39,973 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:41,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:41,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:41,059 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147
[2024-09-22 16:21:41,059 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:41,060 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:41,060 INFO  L85        PathProgramCache]: Analyzing trace with hash 499470782, now seen corresponding path program 2 times
[2024-09-22 16:21:41,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:41,060 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249956956]
[2024-09-22 16:21:41,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:41,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:41,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:42,169 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked.
[2024-09-22 16:21:42,170 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:42,170 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249956956]
[2024-09-22 16:21:42,170 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249956956] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:42,170 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:42,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:21:42,170 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293794497]
[2024-09-22 16:21:42,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:42,170 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:21:42,171 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:42,171 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:21:42,171 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:21:42,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:42,171 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:42,171 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 134.0) internal successors, (670), 4 states have internal predecessors, (670), 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)
[2024-09-22 16:21:42,171 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:42,172 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:42,172 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:46,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:46,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:21:46,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:21:46,523 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148
[2024-09-22 16:21:46,523 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:46,523 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:46,523 INFO  L85        PathProgramCache]: Analyzing trace with hash -1377026272, now seen corresponding path program 1 times
[2024-09-22 16:21:46,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:46,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350348818]
[2024-09-22 16:21:46,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:46,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:46,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:21:46,659 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:21:46,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:21:47,013 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:21:47,013 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:21:47,013 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:21:47,014 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:21:47,014 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149
[2024-09-22 16:21:47,014 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:21:47,015 WARN  L239   ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:21:47,015 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances.
[2024-09-22 16:21:47,123 INFO  L144    ThreadInstanceAdder]: Constructed 39 joinOtherThreadTransitions.
[2024-09-22 16:21:47,132 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:21:47,133 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:21:47,133 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:21:47,141 INFO  L229       MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:21:47,144 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (40)] Waiting until timeout for monitored process
[2024-09-22 16:21:47,148 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:21:47,149 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:21:47,149 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:21:47,149 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:21:51,367 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:21:51,367 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:21:51,367 INFO  L85        PathProgramCache]: Analyzing trace with hash 576137826, now seen corresponding path program 1 times
[2024-09-22 16:21:51,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:21:51,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060696553]
[2024-09-22 16:21:51,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:21:51,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:21:51,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:21:51,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked.
[2024-09-22 16:21:51,464 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:21:51,464 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060696553]
[2024-09-22 16:21:51,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060696553] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:21:51,464 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:21:51,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:21:51,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513437871]
[2024-09-22 16:21:51,464 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:21:51,464 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:21:51,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:21:51,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:21:51,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:21:51,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:21:51,465 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:21:51,465 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 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)
[2024-09-22 16:21:51,465 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:06,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:06,157 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150
[2024-09-22 16:22:06,157 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:06,157 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:06,157 INFO  L85        PathProgramCache]: Analyzing trace with hash 1861718656, now seen corresponding path program 1 times
[2024-09-22 16:22:06,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:06,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659758599]
[2024-09-22 16:22:06,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:06,158 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:06,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:06,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 2109 trivial. 0 not checked.
[2024-09-22 16:22:06,624 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:06,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659758599]
[2024-09-22 16:22:06,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659758599] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:06,624 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:06,625 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:22:06,625 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020088364]
[2024-09-22 16:22:06,625 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:06,625 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:22:06,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:06,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:22:06,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:22:06,626 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:06,626 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:06,626 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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)
[2024-09-22 16:22:06,626 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:06,626 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:07,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:07,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:07,866 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151
[2024-09-22 16:22:07,866 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:07,866 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:07,866 INFO  L85        PathProgramCache]: Analyzing trace with hash -1871682370, now seen corresponding path program 2 times
[2024-09-22 16:22:07,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:07,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892173818]
[2024-09-22 16:22:07,866 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:07,867 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:08,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:08,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked.
[2024-09-22 16:22:08,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:08,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892173818]
[2024-09-22 16:22:08,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892173818] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:08,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:08,932 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:22:08,932 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109897390]
[2024-09-22 16:22:08,932 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:08,933 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:22:08,933 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:08,933 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:22:08,933 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:22:08,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:08,933 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:08,933 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 137.6) internal successors, (688), 4 states have internal predecessors, (688), 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)
[2024-09-22 16:22:08,933 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:08,934 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:08,934 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:14,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:14,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:14,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:22:14,164 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152
[2024-09-22 16:22:14,164 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:14,164 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:14,164 INFO  L85        PathProgramCache]: Analyzing trace with hash 450228670, now seen corresponding path program 1 times
[2024-09-22 16:22:14,164 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:14,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123839625]
[2024-09-22 16:22:14,164 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:14,164 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:14,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:22:14,309 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:22:14,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:22:14,587 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:22:14,587 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:22:14,587 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:22:14,587 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:22:14,587 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153
[2024-09-22 16:22:14,588 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:22:14,588 WARN  L239   ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:22:14,588 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances.
[2024-09-22 16:22:14,684 INFO  L144    ThreadInstanceAdder]: Constructed 40 joinOtherThreadTransitions.
[2024-09-22 16:22:14,689 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:22:14,689 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:22:14,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:22:14,697 INFO  L229       MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:22:14,700 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:22:14,700 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (41)] Waiting until timeout for monitored process
[2024-09-22 16:22:14,700 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:22:14,709 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:22:14,709 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:22:19,118 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:19,118 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:19,118 INFO  L85        PathProgramCache]: Analyzing trace with hash 955278011, now seen corresponding path program 1 times
[2024-09-22 16:22:19,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:19,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673014167]
[2024-09-22 16:22:19,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:19,119 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:19,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:19,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked.
[2024-09-22 16:22:19,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:19,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673014167]
[2024-09-22 16:22:19,214 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673014167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:19,214 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:19,214 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:22:19,214 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217786036]
[2024-09-22 16:22:19,214 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:19,215 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:22:19,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:19,215 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:22:19,215 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:22:19,215 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:19,215 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:19,216 INFO  L475      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)
[2024-09-22 16:22:19,216 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:34,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:34,238 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154
[2024-09-22 16:22:34,238 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:34,238 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:34,238 INFO  L85        PathProgramCache]: Analyzing trace with hash -1104561823, now seen corresponding path program 1 times
[2024-09-22 16:22:34,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:34,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416692562]
[2024-09-22 16:22:34,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:34,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:34,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:34,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 2223 trivial. 0 not checked.
[2024-09-22 16:22:34,690 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:34,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416692562]
[2024-09-22 16:22:34,690 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416692562] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:34,690 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:34,690 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:22:34,690 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107055528]
[2024-09-22 16:22:34,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:34,691 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:22:34,691 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:34,691 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:22:34,691 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:22:34,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:34,692 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:34,692 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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)
[2024-09-22 16:22:34,692 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:34,692 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:35,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:35,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:35,879 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155
[2024-09-22 16:22:35,880 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:35,880 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:35,880 INFO  L85        PathProgramCache]: Analyzing trace with hash -1443631065, now seen corresponding path program 2 times
[2024-09-22 16:22:35,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:35,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186024624]
[2024-09-22 16:22:35,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:35,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:36,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:37,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 2186 trivial. 0 not checked.
[2024-09-22 16:22:37,051 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:37,051 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186024624]
[2024-09-22 16:22:37,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186024624] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:37,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:37,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:22:37,051 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145562427]
[2024-09-22 16:22:37,051 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:37,052 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:22:37,052 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:37,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:22:37,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:22:37,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:37,053 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:37,053 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 141.2) internal successors, (706), 4 states have internal predecessors, (706), 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)
[2024-09-22 16:22:37,053 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:37,053 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:37,053 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:42,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:42,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:22:42,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:22:42,373 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156
[2024-09-22 16:22:42,373 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:42,374 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:42,374 INFO  L85        PathProgramCache]: Analyzing trace with hash 1716280915, now seen corresponding path program 1 times
[2024-09-22 16:22:42,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:42,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174610086]
[2024-09-22 16:22:42,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:42,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:42,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:22:42,527 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:22:42,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:22:42,781 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:22:42,782 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:22:42,782 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:22:42,782 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:22:42,782 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157
[2024-09-22 16:22:42,783 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:22:42,783 WARN  L239   ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:22:42,783 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances.
[2024-09-22 16:22:42,884 INFO  L144    ThreadInstanceAdder]: Constructed 41 joinOtherThreadTransitions.
[2024-09-22 16:22:42,890 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:22:42,890 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:22:42,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:22:42,896 INFO  L229       MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:22:42,900 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (42)] Waiting until timeout for monitored process
[2024-09-22 16:22:42,905 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:22:42,905 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:22:42,905 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:22:42,905 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:22:47,498 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:22:47,498 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:22:47,498 INFO  L85        PathProgramCache]: Analyzing trace with hash 1885790291, now seen corresponding path program 1 times
[2024-09-22 16:22:47,498 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:22:47,498 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432871744]
[2024-09-22 16:22:47,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:22:47,499 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:22:47,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:22:47,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked.
[2024-09-22 16:22:47,600 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:22:47,600 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432871744]
[2024-09-22 16:22:47,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432871744] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:22:47,601 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:22:47,601 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:22:47,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226535126]
[2024-09-22 16:22:47,601 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:22:47,601 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:22:47,601 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:22:47,601 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:22:47,601 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:22:47,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:22:47,602 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:22:47,602 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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)
[2024-09-22 16:22:47,602 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:03,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:03,327 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158
[2024-09-22 16:23:03,327 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:03,328 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:03,328 INFO  L85        PathProgramCache]: Analyzing trace with hash 1594672957, now seen corresponding path program 1 times
[2024-09-22 16:23:03,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:03,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765329621]
[2024-09-22 16:23:03,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:03,328 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:03,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:04,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked.
[2024-09-22 16:23:04,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:04,029 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765329621]
[2024-09-22 16:23:04,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765329621] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:04,029 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:04,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:23:04,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771520799]
[2024-09-22 16:23:04,029 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:04,030 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:23:04,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:04,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:23:04,030 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:23:04,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:04,031 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:04,031 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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)
[2024-09-22 16:23:04,031 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:04,031 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:05,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:05,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:05,172 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159
[2024-09-22 16:23:05,172 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:05,172 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:05,173 INFO  L85        PathProgramCache]: Analyzing trace with hash -1426242041, now seen corresponding path program 2 times
[2024-09-22 16:23:05,173 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:05,173 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502491765]
[2024-09-22 16:23:05,173 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:05,173 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:05,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:06,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 2302 trivial. 0 not checked.
[2024-09-22 16:23:06,279 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:06,279 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502491765]
[2024-09-22 16:23:06,279 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502491765] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:06,279 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:06,279 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:23:06,279 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504433416]
[2024-09-22 16:23:06,279 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:06,280 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:23:06,280 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:06,280 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:23:06,280 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:23:06,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:06,280 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:06,280 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 144.8) internal successors, (724), 4 states have internal predecessors, (724), 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)
[2024-09-22 16:23:06,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:06,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:06,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:11,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:11,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:11,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:23:11,775 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160
[2024-09-22 16:23:11,775 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:11,775 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:11,775 INFO  L85        PathProgramCache]: Analyzing trace with hash -1545187502, now seen corresponding path program 1 times
[2024-09-22 16:23:11,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:11,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960978299]
[2024-09-22 16:23:11,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:11,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:12,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:23:12,085 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:23:12,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:23:12,359 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:23:12,360 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:23:12,360 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:23:12,360 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:23:12,360 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161
[2024-09-22 16:23:12,361 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:23:12,361 WARN  L239   ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:23:12,361 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances.
[2024-09-22 16:23:12,468 INFO  L144    ThreadInstanceAdder]: Constructed 42 joinOtherThreadTransitions.
[2024-09-22 16:23:12,474 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:23:12,474 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:23:12,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:23:12,476 INFO  L229       MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:23:12,481 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (43)] Waiting until timeout for monitored process
[2024-09-22 16:23:12,483 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:23:12,484 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:23:12,484 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:23:12,484 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:23:17,263 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:17,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:17,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 1356813305, now seen corresponding path program 1 times
[2024-09-22 16:23:17,264 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:17,264 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981367721]
[2024-09-22 16:23:17,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:17,264 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:17,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:17,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 2542 trivial. 0 not checked.
[2024-09-22 16:23:17,369 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:17,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981367721]
[2024-09-22 16:23:17,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981367721] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:17,369 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:17,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:23:17,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829011798]
[2024-09-22 16:23:17,369 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:17,370 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:23:17,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:17,370 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:23:17,370 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:23:17,370 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:17,370 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:17,370 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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)
[2024-09-22 16:23:17,370 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:33,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:33,973 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162
[2024-09-22 16:23:33,973 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:33,973 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:33,973 INFO  L85        PathProgramCache]: Analyzing trace with hash -510100033, now seen corresponding path program 1 times
[2024-09-22 16:23:33,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:33,973 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32098093]
[2024-09-22 16:23:33,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:33,973 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:34,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:34,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 2460 trivial. 0 not checked.
[2024-09-22 16:23:34,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:34,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32098093]
[2024-09-22 16:23:34,561 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32098093] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:34,561 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:34,561 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:23:34,561 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749140183]
[2024-09-22 16:23:34,561 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:34,561 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:23:34,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:34,562 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:23:34,562 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:23:34,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:34,562 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:34,562 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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)
[2024-09-22 16:23:34,562 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:34,562 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:35,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:35,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:35,865 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163
[2024-09-22 16:23:35,865 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:35,865 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:35,865 INFO  L85        PathProgramCache]: Analyzing trace with hash -1295757779, now seen corresponding path program 2 times
[2024-09-22 16:23:35,865 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:35,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738180888]
[2024-09-22 16:23:35,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:35,865 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:36,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:36,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 2421 trivial. 0 not checked.
[2024-09-22 16:23:36,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:36,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738180888]
[2024-09-22 16:23:36,973 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738180888] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:36,973 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:36,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:23:36,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563128137]
[2024-09-22 16:23:36,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:36,974 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:23:36,974 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:36,975 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:23:36,975 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:23:36,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:36,975 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:36,975 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 148.4) internal successors, (742), 4 states have internal predecessors, (742), 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)
[2024-09-22 16:23:36,975 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:36,975 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:36,975 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:42,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:42,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:23:42,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:23:42,907 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164
[2024-09-22 16:23:42,907 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:42,907 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:42,907 INFO  L85        PathProgramCache]: Analyzing trace with hash -1558028303, now seen corresponding path program 1 times
[2024-09-22 16:23:42,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:42,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847886297]
[2024-09-22 16:23:42,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:42,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:43,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:23:43,072 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:23:43,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:23:43,491 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:23:43,491 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:23:43,492 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:23:43,492 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:23:43,492 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165
[2024-09-22 16:23:43,493 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:23:43,493 WARN  L239   ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:23:43,493 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances.
[2024-09-22 16:23:43,600 INFO  L144    ThreadInstanceAdder]: Constructed 43 joinOtherThreadTransitions.
[2024-09-22 16:23:43,604 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:23:43,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:23:43,604 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:23:43,606 INFO  L229       MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:23:43,606 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (44)] Waiting until timeout for monitored process
[2024-09-22 16:23:43,610 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:23:43,610 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:23:43,610 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:23:43,610 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:23:48,742 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:23:48,742 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:23:48,743 INFO  L85        PathProgramCache]: Analyzing trace with hash 746811784, now seen corresponding path program 1 times
[2024-09-22 16:23:48,743 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:23:48,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090471901]
[2024-09-22 16:23:48,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:23:48,743 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:23:48,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:23:48,853 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked.
[2024-09-22 16:23:48,853 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:23:48,853 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090471901]
[2024-09-22 16:23:48,853 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090471901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:23:48,853 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:23:48,853 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:23:48,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093963547]
[2024-09-22 16:23:48,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:23:48,854 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:23:48,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:23:48,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:23:48,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:23:48,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:23:48,854 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:23:48,854 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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)
[2024-09-22 16:23:48,854 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:06,501 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:06,502 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166
[2024-09-22 16:24:06,502 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:06,502 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:06,502 INFO  L85        PathProgramCache]: Analyzing trace with hash 1449115956, now seen corresponding path program 1 times
[2024-09-22 16:24:06,502 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:06,502 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724071821]
[2024-09-22 16:24:06,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:06,502 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:06,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:24:07,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 2583 trivial. 0 not checked.
[2024-09-22 16:24:07,031 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:24:07,031 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724071821]
[2024-09-22 16:24:07,031 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724071821] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:24:07,031 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:24:07,031 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:24:07,031 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078865454]
[2024-09-22 16:24:07,031 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:24:07,032 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:24:07,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:24:07,032 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:24:07,032 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:24:07,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:07,033 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:24:07,033 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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)
[2024-09-22 16:24:07,033 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:07,033 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:08,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:08,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:08,308 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167
[2024-09-22 16:24:08,309 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:08,309 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:08,309 INFO  L85        PathProgramCache]: Analyzing trace with hash -377360840, now seen corresponding path program 2 times
[2024-09-22 16:24:08,309 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:08,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821745791]
[2024-09-22 16:24:08,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:08,309 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:08,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:24:09,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 2543 trivial. 0 not checked.
[2024-09-22 16:24:09,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:24:09,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821745791]
[2024-09-22 16:24:09,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821745791] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:24:09,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:24:09,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:24:09,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528323655]
[2024-09-22 16:24:09,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:24:09,513 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:24:09,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:24:09,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:24:09,513 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:24:09,513 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:09,513 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:24:09,514 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 152.0) internal successors, (760), 4 states have internal predecessors, (760), 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)
[2024-09-22 16:24:09,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:09,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:09,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:15,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:15,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:15,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:24:15,960 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168
[2024-09-22 16:24:15,960 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:15,961 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:15,961 INFO  L85        PathProgramCache]: Analyzing trace with hash 1384993607, now seen corresponding path program 1 times
[2024-09-22 16:24:15,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:15,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3559369]
[2024-09-22 16:24:15,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:15,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:16,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:24:16,130 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:24:16,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:24:16,437 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:24:16,437 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:24:16,437 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:24:16,437 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:24:16,437 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169
[2024-09-22 16:24:16,438 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:24:16,438 WARN  L239   ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:24:16,438 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances.
[2024-09-22 16:24:16,544 INFO  L144    ThreadInstanceAdder]: Constructed 44 joinOtherThreadTransitions.
[2024-09-22 16:24:16,548 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:24:16,548 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:24:16,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:24:16,550 INFO  L229       MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:24:16,551 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (45)] Waiting until timeout for monitored process
[2024-09-22 16:24:16,554 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:24:16,554 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:24:16,555 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:24:16,555 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:24:21,905 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:21,906 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:21,906 INFO  L85        PathProgramCache]: Analyzing trace with hash 1232948231, now seen corresponding path program 1 times
[2024-09-22 16:24:21,906 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:21,906 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555689157]
[2024-09-22 16:24:21,906 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:21,906 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:21,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:24:22,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked.
[2024-09-22 16:24:22,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:24:22,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555689157]
[2024-09-22 16:24:22,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555689157] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:24:22,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:24:22,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:24:22,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109333160]
[2024-09-22 16:24:22,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:24:22,026 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:24:22,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:24:22,027 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:24:22,027 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:24:22,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:22,027 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:24:22,027 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 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)
[2024-09-22 16:24:22,027 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:42,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:42,345 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170
[2024-09-22 16:24:42,345 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:42,345 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:42,346 INFO  L85        PathProgramCache]: Analyzing trace with hash -45939229, now seen corresponding path program 1 times
[2024-09-22 16:24:42,346 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:42,346 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820172999]
[2024-09-22 16:24:42,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:42,346 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:42,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:24:43,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked.
[2024-09-22 16:24:43,656 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:24:43,656 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820172999]
[2024-09-22 16:24:43,656 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820172999] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:24:43,656 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:24:43,656 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:24:43,656 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189534249]
[2024-09-22 16:24:43,656 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:24:43,657 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:24:43,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:24:43,658 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:24:43,658 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:24:43,658 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:43,658 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:24:43,659 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 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)
[2024-09-22 16:24:43,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:43,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:45,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:45,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:45,560 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171
[2024-09-22 16:24:45,560 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:45,561 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:45,561 INFO  L85        PathProgramCache]: Analyzing trace with hash 1702939565, now seen corresponding path program 2 times
[2024-09-22 16:24:45,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:45,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108488118]
[2024-09-22 16:24:45,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:45,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:46,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:24:47,574 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 2668 trivial. 0 not checked.
[2024-09-22 16:24:47,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:24:47,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108488118]
[2024-09-22 16:24:47,575 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108488118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:24:47,575 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:24:47,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:24:47,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245582129]
[2024-09-22 16:24:47,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:24:47,576 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:24:47,576 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:24:47,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:24:47,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:24:47,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:47,577 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:24:47,578 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 155.6) internal successors, (778), 4 states have internal predecessors, (778), 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)
[2024-09-22 16:24:47,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:47,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:47,578 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:55,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:24:55,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:24:55,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:24:55,502 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172
[2024-09-22 16:24:55,503 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:24:55,503 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:24:55,503 INFO  L85        PathProgramCache]: Analyzing trace with hash 402470211, now seen corresponding path program 1 times
[2024-09-22 16:24:55,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:24:55,503 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595570795]
[2024-09-22 16:24:55,503 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:24:55,503 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:24:55,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:24:55,803 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:24:55,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:24:56,126 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:24:56,126 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:24:56,126 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:24:56,127 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:24:56,127 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173
[2024-09-22 16:24:56,127 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:24:56,128 WARN  L239   ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:24:56,128 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances.
[2024-09-22 16:24:56,235 INFO  L144    ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions.
[2024-09-22 16:24:56,239 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:24:56,240 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:24:56,240 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:24:56,250 INFO  L229       MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:24:56,252 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (46)] Waiting until timeout for monitored process
[2024-09-22 16:24:56,254 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:24:56,255 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:24:56,255 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:24:56,255 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:25:01,774 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:25:01,774 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:25:01,774 INFO  L85        PathProgramCache]: Analyzing trace with hash 715125641, now seen corresponding path program 1 times
[2024-09-22 16:25:01,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:25:01,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606364441]
[2024-09-22 16:25:01,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:25:01,774 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:25:01,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:25:01,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 2926 trivial. 0 not checked.
[2024-09-22 16:25:01,895 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:25:01,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606364441]
[2024-09-22 16:25:01,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606364441] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:25:01,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:25:01,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:25:01,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191871785]
[2024-09-22 16:25:01,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:25:01,896 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:25:01,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:25:01,896 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:25:01,897 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:25:01,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:01,897 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:25:01,897 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 160.5) internal successors, (321), 2 states have internal predecessors, (321), 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)
[2024-09-22 16:25:01,897 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:26,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:26,887 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174
[2024-09-22 16:25:26,887 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:25:26,888 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:25:26,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 484239685, now seen corresponding path program 1 times
[2024-09-22 16:25:26,888 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:25:26,888 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992672039]
[2024-09-22 16:25:26,888 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:25:26,888 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:25:27,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:25:27,735 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 2838 trivial. 0 not checked.
[2024-09-22 16:25:27,735 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:25:27,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992672039]
[2024-09-22 16:25:27,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992672039] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:25:27,735 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:25:27,736 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:25:27,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208812393]
[2024-09-22 16:25:27,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:25:27,736 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:25:27,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:25:27,737 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:25:27,737 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:25:27,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:27,737 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:25:27,739 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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)
[2024-09-22 16:25:27,739 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:27,739 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:29,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:29,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:25:29,709 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175
[2024-09-22 16:25:29,709 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:25:29,709 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:25:29,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 1322400969, now seen corresponding path program 2 times
[2024-09-22 16:25:29,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:25:29,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965351170]
[2024-09-22 16:25:29,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:25:29,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:25:30,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:25:32,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 2796 trivial. 0 not checked.
[2024-09-22 16:25:32,022 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:25:32,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965351170]
[2024-09-22 16:25:32,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965351170] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:25:32,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:25:32,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:25:32,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890925722]
[2024-09-22 16:25:32,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:25:32,023 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:25:32,024 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:25:32,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:25:32,025 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:25:32,025 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:32,025 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:25:32,025 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 159.2) internal successors, (796), 4 states have internal predecessors, (796), 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)
[2024-09-22 16:25:32,025 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:32,025 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:25:32,025 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:42,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:42,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:25:42,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:25:42,171 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176
[2024-09-22 16:25:42,171 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:25:42,172 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:25:42,172 INFO  L85        PathProgramCache]: Analyzing trace with hash 89116107, now seen corresponding path program 1 times
[2024-09-22 16:25:42,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:25:42,172 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461553381]
[2024-09-22 16:25:42,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:25:42,172 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:25:42,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:25:42,430 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:25:42,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:25:42,954 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:25:42,954 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:25:42,954 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:25:42,954 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:25:42,955 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177
[2024-09-22 16:25:42,955 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:25:42,955 WARN  L239   ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:25:42,956 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances.
[2024-09-22 16:25:43,098 INFO  L144    ThreadInstanceAdder]: Constructed 46 joinOtherThreadTransitions.
[2024-09-22 16:25:43,104 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:25:43,104 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:25:43,105 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:25:43,107 INFO  L229       MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:25:43,112 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (47)] Waiting until timeout for monitored process
[2024-09-22 16:25:43,114 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:25:43,114 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:25:43,114 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:25:43,114 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:25:49,875 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:25:49,875 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:25:49,875 INFO  L85        PathProgramCache]: Analyzing trace with hash 1207172977, now seen corresponding path program 1 times
[2024-09-22 16:25:49,875 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:25:49,876 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304824031]
[2024-09-22 16:25:49,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:25:49,876 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:25:50,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:25:50,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 3197 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 3060 trivial. 0 not checked.
[2024-09-22 16:25:50,106 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:25:50,106 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304824031]
[2024-09-22 16:25:50,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304824031] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:25:50,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:25:50,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:25:50,107 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135081]
[2024-09-22 16:25:50,107 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:25:50,107 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:25:50,107 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:25:50,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:25:50,108 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:25:50,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:25:50,108 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:25:50,108 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 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)
[2024-09-22 16:25:50,108 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:15,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:15,542 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178
[2024-09-22 16:26:15,543 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:26:15,543 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:26:15,543 INFO  L85        PathProgramCache]: Analyzing trace with hash -1236946999, now seen corresponding path program 1 times
[2024-09-22 16:26:15,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:26:15,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783326015]
[2024-09-22 16:26:15,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:26:15,544 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:26:15,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:26:16,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 3197 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked.
[2024-09-22 16:26:16,605 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:26:16,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783326015]
[2024-09-22 16:26:16,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783326015] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:26:16,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:26:16,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-22 16:26:16,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973314851]
[2024-09-22 16:26:16,605 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:26:16,606 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-22 16:26:16,606 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:26:16,607 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-22 16:26:16,607 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-22 16:26:16,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:16,607 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:26:16,611 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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)
[2024-09-22 16:26:16,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:16,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:18,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:18,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:26:18,667 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179
[2024-09-22 16:26:18,667 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:26:18,668 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:26:18,671 INFO  L85        PathProgramCache]: Analyzing trace with hash 991717785, now seen corresponding path program 2 times
[2024-09-22 16:26:18,672 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:26:18,672 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881768628]
[2024-09-22 16:26:18,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:26:18,672 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:26:19,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:26:21,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 3197 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 2927 trivial. 0 not checked.
[2024-09-22 16:26:21,072 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:26:21,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881768628]
[2024-09-22 16:26:21,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881768628] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:26:21,072 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:26:21,073 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-22 16:26:21,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468157988]
[2024-09-22 16:26:21,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:26:21,073 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-22 16:26:21,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:26:21,076 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-22 16:26:21,076 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-22 16:26:21,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:21,076 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:26:21,077 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 162.8) internal successors, (814), 4 states have internal predecessors, (814), 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)
[2024-09-22 16:26:21,077 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:21,077 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:26:21,077 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:30,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:30,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-22 16:26:30,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-22 16:26:30,996 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180
[2024-09-22 16:26:30,996 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:26:30,996 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:26:30,996 INFO  L85        PathProgramCache]: Analyzing trace with hash 1144459246, now seen corresponding path program 1 times
[2024-09-22 16:26:30,996 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:26:30,996 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200563776]
[2024-09-22 16:26:30,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:26:30,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:26:31,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:26:31,190 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-22 16:26:31,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-22 16:26:31,549 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-22 16:26:31,550 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-22 16:26:31,550 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-09-22 16:26:31,550 INFO  L785   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-09-22 16:26:31,550 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181
[2024-09-22 16:26:31,551 INFO  L408         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-09-22 16:26:31,551 WARN  L239   ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-22 16:26:31,551 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances.
[2024-09-22 16:26:31,664 INFO  L144    ThreadInstanceAdder]: Constructed 47 joinOtherThreadTransitions.
[2024-09-22 16:26:31,668 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:26:31,669 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-22 16:26:31,669 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-22 16:26:31,670 INFO  L229       MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-22 16:26:31,671 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (48)] Waiting until timeout for monitored process
[2024-09-22 16:26:31,674 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-22 16:26:31,675 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-22 16:26:31,675 INFO  L336      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;@77439dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-22 16:26:31,675 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-09-22 16:26:39,767 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-22 16:26:39,767 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-22 16:26:39,767 INFO  L85        PathProgramCache]: Analyzing trace with hash 1226309542, now seen corresponding path program 1 times
[2024-09-22 16:26:39,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-22 16:26:39,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24303256]
[2024-09-22 16:26:39,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-22 16:26:39,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-22 16:26:39,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-22 16:26:39,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 3337 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 3197 trivial. 0 not checked.
[2024-09-22 16:26:39,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-22 16:26:39,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24303256]
[2024-09-22 16:26:39,973 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24303256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-22 16:26:39,973 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-22 16:26:39,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-22 16:26:39,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060897021]
[2024-09-22 16:26:39,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-22 16:26:39,973 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-22 16:26:39,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-22 16:26:39,974 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-22 16:26:39,974 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-22 16:26:39,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-22 16:26:39,974 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-22 16:26:39,974 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 167.5) internal successors, (335), 2 states have internal predecessors, (335), 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)
[2024-09-22 16:26:39,974 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Killed by 15