./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 --validate ./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 7bc0c755
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/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i ./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m
[2024-08-23 16:20:44,479 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-08-23 16:20:44,544 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf
[2024-08-23 16:20:44,547 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-08-23 16:20:44,547 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-08-23 16:20:44,563 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-08-23 16:20:44,563 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-08-23 16:20:44,564 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-08-23 16:20:44,564 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-08-23 16:20:44,564 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-08-23 16:20:44,565 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-08-23 16:20:44,565 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-08-23 16:20:44,565 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-08-23 16:20:44,565 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-08-23 16:20:44,566 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-08-23 16:20:44,566 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-08-23 16:20:44,566 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-08-23 16:20:44,566 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-08-23 16:20:44,566 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-08-23 16:20:44,567 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-08-23 16:20:44,567 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-08-23 16:20:44,569 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-08-23 16:20:44,569 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-08-23 16:20:44,569 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-08-23 16:20:44,569 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-08-23 16:20:44,569 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-08-23 16:20:44,569 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-08-23 16:20:44,570 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-08-23 16:20:44,570 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * DFS Order used in POR=LOOP_LOCKSTEP
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-08-23 16:20:44,571 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-08-23 16:20:44,571 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
[2024-08-23 16:20:44,761 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-08-23 16:20:44,782 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-08-23 16:20:44,784 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-08-23 16:20:44,785 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-08-23 16:20:44,785 INFO  L274        PluginConnector]: CDTParser initialized
[2024-08-23 16:20:44,786 INFO  L431   ainManager$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
[2024-08-23 16:20:45,892 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-08-23 16:20:46,077 INFO  L384              CDTParser]: Found 1 translation units.
[2024-08-23 16:20:46,078 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i
[2024-08-23 16:20:46,091 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a03f612c1/73db6c57289b4174ac163547b383d874/FLAGc70d3d23b
[2024-08-23 16:20:46,472 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a03f612c1/73db6c57289b4174ac163547b383d874
[2024-08-23 16:20:46,474 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-08-23 16:20:46,474 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-08-23 16:20:46,475 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml
[2024-08-23 16:20:46,543 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-08-23 16:20:46,544 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-08-23 16:20:46,546 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-08-23 16:20:46,546 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-08-23 16:20:46,550 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-08-23 16:20:46,550 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:20:46" (1/2) ...
[2024-08-23 16:20:46,551 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472d6c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:20:46, skipping insertion in model container
[2024-08-23 16:20:46,552 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:20:46" (1/2) ...
[2024-08-23 16:20:46,553 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27e3dcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:20:46, skipping insertion in model container
[2024-08-23 16:20:46,553 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:20:46" (2/2) ...
[2024-08-23 16:20:46,553 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472d6c0f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46, skipping insertion in model container
[2024-08-23 16:20:46,553 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:20:46" (2/2) ...
[2024-08-23 16:20:46,553 INFO  L81    nessWitnessExtractor]: Only extracting loop invariants from correctness witness
[2024-08-23 16:20:46,556 INFO  L92    edCorrectnessWitness]: Witness did not contain any usable entries.
[2024-08-23 16:20:46,587 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2024-08-23 16:20:46,828 WARN  L247   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]
[2024-08-23 16:20:46,850 INFO  L207          PostProcessor]: Analyzing one entry point: main
[2024-08-23 16:20:46,858 INFO  L202         MainTranslator]: Completed pre-run
[2024-08-23 16:20:46,899 WARN  L247   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]
[2024-08-23 16:20:46,904 INFO  L207          PostProcessor]: Analyzing one entry point: main
[2024-08-23 16:20:46,933 INFO  L206         MainTranslator]: Completed translation
[2024-08-23 16:20:46,933 INFO  L201        PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46 WrapperNode
[2024-08-23 16:20:46,934 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-08-23 16:20:46,935 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-08-23 16:20:46,935 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-08-23 16:20:46,935 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-08-23 16:20:46,941 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,954 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,969 INFO  L138                Inliner]: procedures = 171, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87
[2024-08-23 16:20:46,969 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-08-23 16:20:46,970 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-08-23 16:20:46,970 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-08-23 16:20:46,970 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-08-23 16:20:46,977 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,977 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,979 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,979 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,983 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,989 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,990 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,991 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:46,994 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-08-23 16:20:46,994 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-08-23 16:20:46,994 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-08-23 16:20:46,995 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-08-23 16:20:46,995 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (1/1) ...
[2024-08-23 16:20:47,003 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-08-23 16:20:47,011 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:47,024 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)
[2024-08-23 16:20:47,026 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
[2024-08-23 16:20:47,048 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-08-23 16:20:47,048 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-08-23 16:20:47,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-08-23 16:20:47,049 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-08-23 16:20:47,050 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-08-23 16:20:47,050 WARN  L212             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-08-23 16:20:47,137 INFO  L243             CfgBuilder]: Building ICFG
[2024-08-23 16:20:47,138 INFO  L269             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-08-23 16:20:47,298 INFO  L288             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-08-23 16:20:47,298 INFO  L292             CfgBuilder]: Performing block encoding
[2024-08-23 16:20:47,452 INFO  L314             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-08-23 16:20:47,452 INFO  L319             CfgBuilder]: Removed 10 assume(true) statements.
[2024-08-23 16:20:47,452 INFO  L201        PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:20:47 BoogieIcfgContainer
[2024-08-23 16:20:47,452 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-08-23 16:20:47,454 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-08-23 16:20:47,454 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-08-23 16:20:47,471 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-08-23 16:20:47,471 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 04:20:46" (1/4) ...
[2024-08-23 16:20:47,472 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ace1a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 04:20:47, skipping insertion in model container
[2024-08-23 16:20:47,472 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:20:46" (2/4) ...
[2024-08-23 16:20:47,472 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ace1a96 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 04:20:47, skipping insertion in model container
[2024-08-23 16:20:47,472 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:20:46" (3/4) ...
[2024-08-23 16:20:47,472 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ace1a96 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 04:20:47, skipping insertion in model container
[2024-08-23 16:20:47,472 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:20:47" (4/4) ...
[2024-08-23 16:20:47,477 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i
[2024-08-23 16:20:47,494 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-08-23 16:20:47,494 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-08-23 16:20:47,494 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-08-23 16:20:47,526 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-08-23 16:20:47,560 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:47,561 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:47,562 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:47,566 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)
[2024-08-23 16:20:47,568 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
[2024-08-23 16:20:47,605 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:47,618 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:47,624 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:47,625 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:47,699 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:47,702 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:47,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 349046995, now seen corresponding path program 1 times
[2024-08-23 16:20:47,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:47,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759725422]
[2024-08-23 16:20:47,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:47,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:47,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:47,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-08-23 16:20:47,854 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:47,854 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759725422]
[2024-08-23 16:20:47,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759725422] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:47,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:47,855 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:47,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639696214]
[2024-08-23 16:20:47,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:47,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:47,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:47,875 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:47,876 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:47,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:47,877 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:47,878 INFO  L496      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)
[2024-08-23 16:20:47,878 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:47,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:47,912 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-08-23 16:20:47,912 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:47,912 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:47,913 INFO  L85        PathProgramCache]: Analyzing trace with hash 1421591153, now seen corresponding path program 1 times
[2024-08-23 16:20:47,913 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:47,913 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788507650]
[2024-08-23 16:20:47,913 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:47,913 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:47,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:47,949 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:47,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:47,989 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:47,989 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:47,990 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:47,991 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:47,991 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-08-23 16:20:48,003 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-08-23 16:20:48,004 WARN  L234   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:48,004 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-08-23 16:20:48,021 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-08-23 16:20:48,024 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:48,024 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:48,024 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:48,026 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)
[2024-08-23 16:20:48,027 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
[2024-08-23 16:20:48,030 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:48,031 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:48,031 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:48,032 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:48,113 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:48,113 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:48,113 INFO  L85        PathProgramCache]: Analyzing trace with hash -564250443, now seen corresponding path program 1 times
[2024-08-23 16:20:48,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:48,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705210219]
[2024-08-23 16:20:48,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:48,113 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:48,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:48,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-08-23 16:20:48,151 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:48,151 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705210219]
[2024-08-23 16:20:48,151 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705210219] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:48,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:48,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:48,152 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710256422]
[2024-08-23 16:20:48,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:48,152 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:48,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:48,153 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:48,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:48,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,153 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:48,153 INFO  L496      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)
[2024-08-23 16:20:48,153 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,274 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-08-23 16:20:48,274 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:48,275 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:48,275 INFO  L85        PathProgramCache]: Analyzing trace with hash -73711138, now seen corresponding path program 1 times
[2024-08-23 16:20:48,275 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:48,275 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192724878]
[2024-08-23 16:20:48,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:48,275 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:48,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:48,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-08-23 16:20:48,418 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:48,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192724878]
[2024-08-23 16:20:48,419 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192724878] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:48,419 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:48,419 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:48,419 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921203862]
[2024-08-23 16:20:48,419 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:48,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:48,420 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:48,420 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:48,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:48,421 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,422 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:48,422 INFO  L496      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)
[2024-08-23 16:20:48,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:48,482 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-08-23 16:20:48,482 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:48,482 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:48,482 INFO  L85        PathProgramCache]: Analyzing trace with hash 1751897351, now seen corresponding path program 1 times
[2024-08-23 16:20:48,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:48,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913271837]
[2024-08-23 16:20:48,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:48,483 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:48,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:48,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-08-23 16:20:48,648 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:48,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913271837]
[2024-08-23 16:20:48,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913271837] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:48,648 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:48,648 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:48,649 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070295479]
[2024-08-23 16:20:48,649 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:48,649 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:48,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:48,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:48,650 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:48,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,650 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:48,650 INFO  L496      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)
[2024-08-23 16:20:48,650 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,650 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:48,650 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:48,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:48,689 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-08-23 16:20:48,690 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:48,690 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:48,690 INFO  L85        PathProgramCache]: Analyzing trace with hash 2075562630, now seen corresponding path program 1 times
[2024-08-23 16:20:48,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:48,690 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945241875]
[2024-08-23 16:20:48,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:48,690 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:48,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:48,718 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:48,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:48,735 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:48,735 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:48,735 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:48,736 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:48,736 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-08-23 16:20:48,738 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:48,739 WARN  L234   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:48,739 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-08-23 16:20:48,760 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-08-23 16:20:48,765 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:48,765 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:48,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:48,767 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)
[2024-08-23 16:20:48,768 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
[2024-08-23 16:20:48,770 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:48,771 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:48,771 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:48,771 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:48,876 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:48,877 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:48,877 INFO  L85        PathProgramCache]: Analyzing trace with hash -1585671556, now seen corresponding path program 1 times
[2024-08-23 16:20:48,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:48,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754882971]
[2024-08-23 16:20:48,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:48,877 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:48,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:48,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-08-23 16:20:48,893 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:48,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754882971]
[2024-08-23 16:20:48,893 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754882971] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:48,895 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:48,895 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:48,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920325311]
[2024-08-23 16:20:48,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:48,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:48,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:48,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:48,897 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:48,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:48,898 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:48,898 INFO  L496      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)
[2024-08-23 16:20:48,898 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,070 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,070 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-08-23 16:20:49,070 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:49,071 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:49,071 INFO  L85        PathProgramCache]: Analyzing trace with hash -1186690040, now seen corresponding path program 1 times
[2024-08-23 16:20:49,071 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:49,071 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094112654]
[2024-08-23 16:20:49,071 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:49,071 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:49,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:49,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-08-23 16:20:49,147 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:49,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094112654]
[2024-08-23 16:20:49,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094112654] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:49,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:49,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:49,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655875040]
[2024-08-23 16:20:49,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:49,148 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:49,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:49,148 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:49,148 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:49,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,148 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:49,149 INFO  L496      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)
[2024-08-23 16:20:49,149 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,149 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:49,208 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-08-23 16:20:49,208 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:49,209 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:49,209 INFO  L85        PathProgramCache]: Analyzing trace with hash -1546800532, now seen corresponding path program 1 times
[2024-08-23 16:20:49,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:49,209 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55431450]
[2024-08-23 16:20:49,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:49,209 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:49,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:49,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-08-23 16:20:49,335 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:49,335 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55431450]
[2024-08-23 16:20:49,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55431450] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:49,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:49,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:49,336 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188541686]
[2024-08-23 16:20:49,336 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:49,336 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:49,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:49,337 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:49,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:49,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,337 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:49,337 INFO  L496      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)
[2024-08-23 16:20:49,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:49,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,393 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,394 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:49,394 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:49,394 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-08-23 16:20:49,394 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:49,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:49,395 INFO  L85        PathProgramCache]: Analyzing trace with hash 737703892, now seen corresponding path program 1 times
[2024-08-23 16:20:49,395 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:49,395 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745828442]
[2024-08-23 16:20:49,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:49,395 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:49,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:49,414 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:49,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:49,432 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:49,432 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:49,432 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:49,433 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:49,433 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-08-23 16:20:49,434 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:49,434 WARN  L234   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:49,434 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-08-23 16:20:49,451 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-08-23 16:20:49,453 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:49,453 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:49,453 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:49,454 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)
[2024-08-23 16:20:49,456 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
[2024-08-23 16:20:49,457 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:49,458 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:49,458 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:49,458 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:49,595 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:49,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:49,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -1272313157, now seen corresponding path program 1 times
[2024-08-23 16:20:49,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:49,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712972729]
[2024-08-23 16:20:49,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:49,596 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:49,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:49,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-08-23 16:20:49,616 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:49,617 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712972729]
[2024-08-23 16:20:49,617 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712972729] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:49,617 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:49,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:49,617 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471879982]
[2024-08-23 16:20:49,617 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:49,617 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:49,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:49,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:49,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:49,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,618 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:49,618 INFO  L496      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)
[2024-08-23 16:20:49,618 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,890 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-08-23 16:20:49,890 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:49,891 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:49,891 INFO  L85        PathProgramCache]: Analyzing trace with hash 1959368005, now seen corresponding path program 1 times
[2024-08-23 16:20:49,891 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:49,891 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197953294]
[2024-08-23 16:20:49,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:49,891 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:49,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:49,966 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-08-23 16:20:49,966 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:49,966 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197953294]
[2024-08-23 16:20:49,966 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197953294] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:49,966 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:49,966 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:49,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534393507]
[2024-08-23 16:20:49,966 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:49,967 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:49,967 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:49,968 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:49,968 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:49,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,969 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:49,969 INFO  L496      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)
[2024-08-23 16:20:49,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:49,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:50,055 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-08-23 16:20:50,055 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:50,055 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:50,055 INFO  L85        PathProgramCache]: Analyzing trace with hash -276967280, now seen corresponding path program 1 times
[2024-08-23 16:20:50,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:50,056 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487399044]
[2024-08-23 16:20:50,056 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:50,056 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:50,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:50,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-08-23 16:20:50,219 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:50,219 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487399044]
[2024-08-23 16:20:50,219 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487399044] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:50,219 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:50,219 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:50,219 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24847544]
[2024-08-23 16:20:50,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:50,219 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:50,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:50,220 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:50,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:50,220 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,220 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:50,220 INFO  L496      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)
[2024-08-23 16:20:50,220 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,220 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:50,220 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:50,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:50,285 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-08-23 16:20:50,285 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:50,286 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:50,286 INFO  L85        PathProgramCache]: Analyzing trace with hash -1212390030, now seen corresponding path program 1 times
[2024-08-23 16:20:50,286 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:50,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778944295]
[2024-08-23 16:20:50,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:50,286 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:50,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:50,301 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:50,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:50,315 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:50,316 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:50,316 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:50,316 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:50,316 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-08-23 16:20:50,317 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:50,317 WARN  L234   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:50,317 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2024-08-23 16:20:50,339 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2024-08-23 16:20:50,341 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:50,341 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:50,342 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:50,343 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)
[2024-08-23 16:20:50,344 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
[2024-08-23 16:20:50,346 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:50,346 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:50,347 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:50,347 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:50,492 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:50,493 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:50,493 INFO  L85        PathProgramCache]: Analyzing trace with hash 589691309, now seen corresponding path program 1 times
[2024-08-23 16:20:50,493 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:50,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617883806]
[2024-08-23 16:20:50,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:50,493 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:50,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:50,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-08-23 16:20:50,516 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:50,516 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617883806]
[2024-08-23 16:20:50,516 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617883806] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:50,516 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:50,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:50,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967582656]
[2024-08-23 16:20:50,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:50,517 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:50,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:50,517 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:50,518 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:50,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,518 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:50,518 INFO  L496      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)
[2024-08-23 16:20:50,518 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,858 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-08-23 16:20:50,858 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:50,859 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:50,859 INFO  L85        PathProgramCache]: Analyzing trace with hash -1601418351, now seen corresponding path program 1 times
[2024-08-23 16:20:50,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:50,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900290935]
[2024-08-23 16:20:50,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:50,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:50,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:50,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-08-23 16:20:50,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:50,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900290935]
[2024-08-23 16:20:50,926 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900290935] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:50,926 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:50,926 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:50,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90784832]
[2024-08-23 16:20:50,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:50,929 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:50,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:50,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:50,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:50,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,929 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:50,929 INFO  L496      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)
[2024-08-23 16:20:50,930 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:50,930 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:51,051 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-08-23 16:20:51,051 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:51,052 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:51,052 INFO  L85        PathProgramCache]: Analyzing trace with hash 1551820623, now seen corresponding path program 1 times
[2024-08-23 16:20:51,052 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:51,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028058671]
[2024-08-23 16:20:51,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:51,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:51,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:51,189 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-08-23 16:20:51,189 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:51,189 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028058671]
[2024-08-23 16:20:51,189 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028058671] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:51,189 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:51,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:51,189 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803297522]
[2024-08-23 16:20:51,189 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:51,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:51,190 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:51,194 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:51,194 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:51,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,194 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:51,194 INFO  L496      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)
[2024-08-23 16:20:51,194 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,195 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:51,195 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,271 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:51,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:51,272 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-08-23 16:20:51,272 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:51,272 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:51,272 INFO  L85        PathProgramCache]: Analyzing trace with hash 2139748782, now seen corresponding path program 1 times
[2024-08-23 16:20:51,272 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:51,273 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226610005]
[2024-08-23 16:20:51,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:51,273 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:51,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:51,297 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:51,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:51,328 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:51,329 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:51,329 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:51,329 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:51,329 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-08-23 16:20:51,330 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:51,331 WARN  L234   ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:51,331 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances.
[2024-08-23 16:20:51,353 INFO  L144    ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions.
[2024-08-23 16:20:51,354 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:51,354 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:51,354 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:51,358 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)
[2024-08-23 16:20:51,360 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
[2024-08-23 16:20:51,363 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:51,363 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:51,364 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:51,364 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:51,554 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:51,555 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:51,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 700610745, now seen corresponding path program 1 times
[2024-08-23 16:20:51,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:51,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522052802]
[2024-08-23 16:20:51,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:51,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:51,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:51,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-08-23 16:20:51,576 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:51,576 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522052802]
[2024-08-23 16:20:51,576 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522052802] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:51,576 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:51,576 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:51,576 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127323535]
[2024-08-23 16:20:51,576 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:51,576 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:51,577 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:51,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:51,577 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:51,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:51,577 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:51,577 INFO  L496      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)
[2024-08-23 16:20:51,577 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,011 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,011 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-08-23 16:20:52,011 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:52,011 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:52,011 INFO  L85        PathProgramCache]: Analyzing trace with hash 1621878365, now seen corresponding path program 1 times
[2024-08-23 16:20:52,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:52,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196819989]
[2024-08-23 16:20:52,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:52,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:52,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:52,112 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-08-23 16:20:52,112 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:52,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196819989]
[2024-08-23 16:20:52,112 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196819989] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:52,112 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:52,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:52,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137375148]
[2024-08-23 16:20:52,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:52,113 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:52,113 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:52,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:52,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:52,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,113 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:52,113 INFO  L496      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)
[2024-08-23 16:20:52,114 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,114 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:52,246 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-08-23 16:20:52,247 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:52,247 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:52,247 INFO  L85        PathProgramCache]: Analyzing trace with hash 1701611098, now seen corresponding path program 1 times
[2024-08-23 16:20:52,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:52,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824200204]
[2024-08-23 16:20:52,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:52,247 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:52,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:52,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-08-23 16:20:52,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:52,428 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824200204]
[2024-08-23 16:20:52,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824200204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:52,428 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:52,428 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:52,428 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924564808]
[2024-08-23 16:20:52,428 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:52,428 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:52,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:52,429 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:52,429 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:52,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,429 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:52,429 INFO  L496      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)
[2024-08-23 16:20:52,429 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,429 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:52,429 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:52,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:52,560 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-08-23 16:20:52,561 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:52,561 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:52,561 INFO  L85        PathProgramCache]: Analyzing trace with hash 2117167119, now seen corresponding path program 1 times
[2024-08-23 16:20:52,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:52,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668483716]
[2024-08-23 16:20:52,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:52,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:52,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:52,583 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:52,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:52,608 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:52,608 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:52,608 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:52,608 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:52,608 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-08-23 16:20:52,609 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:52,609 WARN  L234   ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:52,609 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances.
[2024-08-23 16:20:52,631 INFO  L144    ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions.
[2024-08-23 16:20:52,633 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:52,634 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:52,634 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:52,635 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)
[2024-08-23 16:20:52,637 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
[2024-08-23 16:20:52,638 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:52,638 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:52,639 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:52,639 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:52,835 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:52,835 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:52,835 INFO  L85        PathProgramCache]: Analyzing trace with hash -1830736838, now seen corresponding path program 1 times
[2024-08-23 16:20:52,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:52,835 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433601577]
[2024-08-23 16:20:52,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:52,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:52,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:52,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2024-08-23 16:20:52,855 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:52,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433601577]
[2024-08-23 16:20:52,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433601577] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:52,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:52,855 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:52,855 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68739137]
[2024-08-23 16:20:52,855 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:52,855 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:52,856 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:52,856 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:52,856 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:52,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:52,856 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:52,856 INFO  L496      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)
[2024-08-23 16:20:52,856 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,424 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-08-23 16:20:53,424 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:53,424 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:53,424 INFO  L85        PathProgramCache]: Analyzing trace with hash -1230780738, now seen corresponding path program 1 times
[2024-08-23 16:20:53,424 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:53,424 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215935521]
[2024-08-23 16:20:53,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:53,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:53,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:53,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-08-23 16:20:53,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:53,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215935521]
[2024-08-23 16:20:53,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215935521] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:53,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:53,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:53,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491050263]
[2024-08-23 16:20:53,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:53,512 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:53,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:53,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:53,513 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:53,513 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,513 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:53,513 INFO  L496      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)
[2024-08-23 16:20:53,513 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,513 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:53,722 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-08-23 16:20:53,722 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:53,722 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:53,722 INFO  L85        PathProgramCache]: Analyzing trace with hash 1475578936, now seen corresponding path program 1 times
[2024-08-23 16:20:53,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:53,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349255940]
[2024-08-23 16:20:53,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:53,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:53,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:53,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2024-08-23 16:20:53,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:53,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349255940]
[2024-08-23 16:20:53,947 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349255940] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:53,947 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:53,947 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:53,947 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394065922]
[2024-08-23 16:20:53,947 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:53,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:53,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:53,948 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:53,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:53,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,948 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:53,948 INFO  L496      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)
[2024-08-23 16:20:53,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:53,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:53,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:54,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:54,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:54,076 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:54,076 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-08-23 16:20:54,077 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:54,077 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:54,077 INFO  L85        PathProgramCache]: Analyzing trace with hash -113033109, now seen corresponding path program 1 times
[2024-08-23 16:20:54,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:54,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746778129]
[2024-08-23 16:20:54,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:54,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:54,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:54,096 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:54,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:54,113 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:54,113 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:54,114 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:54,114 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:54,114 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-08-23 16:20:54,115 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:54,115 WARN  L234   ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:54,115 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances.
[2024-08-23 16:20:54,137 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2024-08-23 16:20:54,138 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:54,139 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:54,139 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:54,140 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)
[2024-08-23 16:20:54,141 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
[2024-08-23 16:20:54,143 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:54,143 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:54,144 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:54,145 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:54,410 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:54,410 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:54,410 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237266185, now seen corresponding path program 1 times
[2024-08-23 16:20:54,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:54,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926405219]
[2024-08-23 16:20:54,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:54,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:54,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:54,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-08-23 16:20:54,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:54,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926405219]
[2024-08-23 16:20:54,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926405219] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:54,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:54,432 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:54,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701347440]
[2024-08-23 16:20:54,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:54,432 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:54,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:54,433 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:54,433 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:54,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:54,433 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:54,433 INFO  L496      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)
[2024-08-23 16:20:54,434 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,177 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-08-23 16:20:55,177 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:55,177 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:55,177 INFO  L85        PathProgramCache]: Analyzing trace with hash -1619654981, now seen corresponding path program 1 times
[2024-08-23 16:20:55,177 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:55,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515550290]
[2024-08-23 16:20:55,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:55,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:55,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:55,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2024-08-23 16:20:55,259 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:55,260 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515550290]
[2024-08-23 16:20:55,260 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515550290] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:55,260 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:55,260 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:55,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638131434]
[2024-08-23 16:20:55,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:55,260 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:55,260 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:55,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:55,261 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:55,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,261 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:55,261 INFO  L496      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)
[2024-08-23 16:20:55,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,261 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,455 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:55,455 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-08-23 16:20:55,455 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:55,455 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:55,456 INFO  L85        PathProgramCache]: Analyzing trace with hash -576779561, now seen corresponding path program 1 times
[2024-08-23 16:20:55,456 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:55,456 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812526849]
[2024-08-23 16:20:55,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:55,456 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:55,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:55,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2024-08-23 16:20:55,670 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:55,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812526849]
[2024-08-23 16:20:55,670 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812526849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:55,670 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:55,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:55,670 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457944540]
[2024-08-23 16:20:55,670 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:55,670 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:55,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:55,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:55,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:55,671 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,671 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:55,671 INFO  L496      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)
[2024-08-23 16:20:55,671 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,671 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:55,671 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:55,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:55,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:55,830 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-08-23 16:20:55,830 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:55,830 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:55,830 INFO  L85        PathProgramCache]: Analyzing trace with hash 372198977, now seen corresponding path program 1 times
[2024-08-23 16:20:55,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:55,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530229170]
[2024-08-23 16:20:55,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:55,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:55,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:55,855 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:55,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:55,878 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:55,878 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:55,878 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:55,878 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:55,878 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-08-23 16:20:55,879 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:55,879 WARN  L234   ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:55,879 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances.
[2024-08-23 16:20:55,901 INFO  L144    ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions.
[2024-08-23 16:20:55,903 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:55,903 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:55,903 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:55,907 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)
[2024-08-23 16:20:55,908 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
[2024-08-23 16:20:55,910 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:55,910 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:55,910 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:55,910 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:56,180 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:56,180 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:56,181 INFO  L85        PathProgramCache]: Analyzing trace with hash 1007401907, now seen corresponding path program 1 times
[2024-08-23 16:20:56,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:56,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451564247]
[2024-08-23 16:20:56,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:56,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:56,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:56,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-08-23 16:20:56,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:56,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451564247]
[2024-08-23 16:20:56,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451564247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:56,205 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:56,205 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:56,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963891104]
[2024-08-23 16:20:56,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:56,206 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:56,206 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:56,206 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:56,206 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:56,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:56,207 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:56,207 INFO  L496      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)
[2024-08-23 16:20:56,207 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,167 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-08-23 16:20:57,168 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:57,168 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:57,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 712351011, now seen corresponding path program 1 times
[2024-08-23 16:20:57,168 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:57,168 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919693967]
[2024-08-23 16:20:57,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:57,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:57,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:57,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-08-23 16:20:57,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:57,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919693967]
[2024-08-23 16:20:57,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919693967] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:57,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:57,306 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:57,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171594339]
[2024-08-23 16:20:57,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:57,306 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:57,306 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:57,307 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:57,307 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:57,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,307 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:57,307 INFO  L496      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)
[2024-08-23 16:20:57,307 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,307 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:57,566 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-08-23 16:20:57,566 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:57,566 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:57,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 1953114161, now seen corresponding path program 1 times
[2024-08-23 16:20:57,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:57,567 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372049842]
[2024-08-23 16:20:57,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:57,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:57,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:57,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked.
[2024-08-23 16:20:57,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:57,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372049842]
[2024-08-23 16:20:57,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372049842] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:57,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:57,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:57,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309623397]
[2024-08-23 16:20:57,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:57,764 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:57,764 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:57,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:57,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:57,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,765 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:57,765 INFO  L496      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)
[2024-08-23 16:20:57,765 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,765 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:57,765 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:57,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:57,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:20:57,981 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-08-23 16:20:57,981 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:57,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:57,981 INFO  L85        PathProgramCache]: Analyzing trace with hash 965113651, now seen corresponding path program 1 times
[2024-08-23 16:20:57,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:57,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956476554]
[2024-08-23 16:20:57,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:57,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:58,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:58,005 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:20:58,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:20:58,029 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:20:58,030 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:20:58,030 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:20:58,030 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:20:58,030 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-08-23 16:20:58,031 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:20:58,031 WARN  L234   ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:20:58,031 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances.
[2024-08-23 16:20:58,056 INFO  L144    ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions.
[2024-08-23 16:20:58,057 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:58,057 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:20:58,057 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:20:58,059 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)
[2024-08-23 16:20:58,060 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
[2024-08-23 16:20:58,062 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:20:58,062 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:20:58,062 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:20:58,062 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:20:58,373 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:58,374 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:58,374 INFO  L85        PathProgramCache]: Analyzing trace with hash -1587450907, now seen corresponding path program 1 times
[2024-08-23 16:20:58,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:58,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131839619]
[2024-08-23 16:20:58,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:58,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:58,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:58,395 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-08-23 16:20:58,396 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:58,396 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131839619]
[2024-08-23 16:20:58,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131839619] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:58,396 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:58,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:20:58,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938415812]
[2024-08-23 16:20:58,396 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:58,396 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:20:58,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:58,396 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:20:58,397 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:20:58,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:58,397 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:58,397 INFO  L496      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)
[2024-08-23 16:20:58,397 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,362 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-08-23 16:20:59,363 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:59,363 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:59,363 INFO  L85        PathProgramCache]: Analyzing trace with hash -648220297, now seen corresponding path program 1 times
[2024-08-23 16:20:59,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:59,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734245226]
[2024-08-23 16:20:59,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:59,363 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:59,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:59,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2024-08-23 16:20:59,460 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:59,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734245226]
[2024-08-23 16:20:59,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734245226] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:59,460 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:59,460 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:20:59,460 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939676304]
[2024-08-23 16:20:59,460 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:59,460 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:20:59,460 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:59,461 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:20:59,461 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:20:59,461 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,461 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:59,461 INFO  L496      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)
[2024-08-23 16:20:59,461 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,461 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:59,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-08-23 16:20:59,777 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:20:59,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:20:59,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -337201472, now seen corresponding path program 1 times
[2024-08-23 16:20:59,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:20:59,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691917598]
[2024-08-23 16:20:59,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:20:59,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:20:59,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:20:59,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2024-08-23 16:20:59,996 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:20:59,996 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691917598]
[2024-08-23 16:20:59,996 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691917598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:20:59,996 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:20:59,996 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:20:59,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782295749]
[2024-08-23 16:20:59,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:20:59,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:20:59,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:20:59,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:20:59,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:20:59,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,997 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:20:59,997 INFO  L496      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)
[2024-08-23 16:20:59,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:20:59,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:20:59,997 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:00,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:00,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:00,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:00,218 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-08-23 16:21:00,218 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:00,218 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:00,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -846087661, now seen corresponding path program 1 times
[2024-08-23 16:21:00,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:00,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911096636]
[2024-08-23 16:21:00,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:00,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:00,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:00,245 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:00,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:00,277 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:00,278 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:00,278 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:00,278 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:00,278 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-08-23 16:21:00,279 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:21:00,279 WARN  L234   ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:00,279 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances.
[2024-08-23 16:21:00,307 INFO  L144    ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions.
[2024-08-23 16:21:00,309 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:00,309 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:00,309 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:00,311 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)
[2024-08-23 16:21:00,312 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
[2024-08-23 16:21:00,314 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:00,315 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:00,315 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:00,315 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:00,710 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:00,710 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:00,711 INFO  L85        PathProgramCache]: Analyzing trace with hash 369628648, now seen corresponding path program 1 times
[2024-08-23 16:21:00,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:00,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699931971]
[2024-08-23 16:21:00,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:00,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:00,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:00,741 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2024-08-23 16:21:00,742 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:00,742 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699931971]
[2024-08-23 16:21:00,742 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699931971] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:00,742 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:00,742 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:00,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413509192]
[2024-08-23 16:21:00,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:00,743 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:00,743 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:00,743 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:00,743 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:00,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:00,743 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:00,744 INFO  L496      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)
[2024-08-23 16:21:00,744 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,033 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-08-23 16:21:02,033 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:02,034 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:02,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -1375264507, now seen corresponding path program 1 times
[2024-08-23 16:21:02,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:02,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764498757]
[2024-08-23 16:21:02,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:02,034 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:02,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:02,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked.
[2024-08-23 16:21:02,155 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:02,155 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764498757]
[2024-08-23 16:21:02,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764498757] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:02,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:02,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:02,156 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371567707]
[2024-08-23 16:21:02,156 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:02,156 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:02,156 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:02,156 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:02,156 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:02,156 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,156 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:02,157 INFO  L496      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)
[2024-08-23 16:21:02,157 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,157 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:02,459 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-08-23 16:21:02,459 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:02,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:02,459 INFO  L85        PathProgramCache]: Analyzing trace with hash 472881039, now seen corresponding path program 1 times
[2024-08-23 16:21:02,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:02,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14976960]
[2024-08-23 16:21:02,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:02,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:02,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:02,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked.
[2024-08-23 16:21:02,736 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:02,736 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14976960]
[2024-08-23 16:21:02,736 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14976960] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:02,736 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:02,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:02,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551096414]
[2024-08-23 16:21:02,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:02,737 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:02,737 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:02,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:02,738 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:02,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,738 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:02,738 INFO  L496      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)
[2024-08-23 16:21:02,738 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:02,738 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:02,738 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:03,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:03,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:03,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:03,001 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-08-23 16:21:03,001 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:03,001 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:03,001 INFO  L85        PathProgramCache]: Analyzing trace with hash 672679987, now seen corresponding path program 1 times
[2024-08-23 16:21:03,001 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:03,002 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827101339]
[2024-08-23 16:21:03,002 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:03,002 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:03,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:03,028 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:03,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:03,055 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:03,056 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:03,056 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:03,056 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:03,056 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-08-23 16:21:03,057 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:21:03,057 WARN  L234   ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:03,057 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances.
[2024-08-23 16:21:03,086 INFO  L144    ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions.
[2024-08-23 16:21:03,088 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:03,088 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:03,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:03,090 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)
[2024-08-23 16:21:03,091 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
[2024-08-23 16:21:03,093 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:03,093 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:03,093 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:03,093 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:03,489 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:03,490 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:03,490 INFO  L85        PathProgramCache]: Analyzing trace with hash -1405076821, now seen corresponding path program 1 times
[2024-08-23 16:21:03,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:03,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235635350]
[2024-08-23 16:21:03,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:03,490 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:03,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:03,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2024-08-23 16:21:03,515 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:03,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235635350]
[2024-08-23 16:21:03,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235635350] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:03,515 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:03,515 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:03,515 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789822029]
[2024-08-23 16:21:03,515 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:03,515 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:03,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:03,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:03,516 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:03,516 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:03,516 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:03,516 INFO  L496      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)
[2024-08-23 16:21:03,516 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:04,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:04,778 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-08-23 16:21:04,778 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:04,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:04,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -2125591357, now seen corresponding path program 1 times
[2024-08-23 16:21:04,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:04,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394654753]
[2024-08-23 16:21:04,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:04,779 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:04,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:04,881 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked.
[2024-08-23 16:21:04,881 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:04,881 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394654753]
[2024-08-23 16:21:04,881 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394654753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:04,881 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:04,881 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:04,881 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601107549]
[2024-08-23 16:21:04,881 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:04,882 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:04,882 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:04,882 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:04,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:04,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:04,882 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:04,882 INFO  L496      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)
[2024-08-23 16:21:04,882 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:04,882 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:05,201 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-08-23 16:21:05,201 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:05,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:05,201 INFO  L85        PathProgramCache]: Analyzing trace with hash -1025385641, now seen corresponding path program 1 times
[2024-08-23 16:21:05,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:05,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712510274]
[2024-08-23 16:21:05,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:05,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:05,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:05,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked.
[2024-08-23 16:21:05,443 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:05,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712510274]
[2024-08-23 16:21:05,443 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712510274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:05,443 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:05,443 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:05,444 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176121559]
[2024-08-23 16:21:05,444 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:05,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:05,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:05,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:05,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:05,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,444 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:05,445 INFO  L496      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)
[2024-08-23 16:21:05,445 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,445 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:05,445 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:05,814 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:05,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:05,815 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2024-08-23 16:21:05,815 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:05,815 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:05,815 INFO  L85        PathProgramCache]: Analyzing trace with hash -1198708752, now seen corresponding path program 1 times
[2024-08-23 16:21:05,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:05,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31440433]
[2024-08-23 16:21:05,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:05,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:05,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:05,843 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:05,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:05,886 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:05,886 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:05,886 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:05,886 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:05,886 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2024-08-23 16:21:05,887 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:21:05,888 WARN  L234   ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:05,888 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances.
[2024-08-23 16:21:05,922 INFO  L144    ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions.
[2024-08-23 16:21:05,923 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:05,924 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:05,924 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:05,925 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)
[2024-08-23 16:21:05,926 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
[2024-08-23 16:21:05,928 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:05,928 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:05,928 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:05,928 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:06,368 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:06,368 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:06,368 INFO  L85        PathProgramCache]: Analyzing trace with hash 480768909, now seen corresponding path program 1 times
[2024-08-23 16:21:06,368 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:06,368 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617176827]
[2024-08-23 16:21:06,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:06,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:06,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:06,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2024-08-23 16:21:06,393 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:06,393 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617176827]
[2024-08-23 16:21:06,393 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617176827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:06,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:06,394 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:06,394 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111470665]
[2024-08-23 16:21:06,394 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:06,394 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:06,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:06,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:06,395 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:06,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:06,395 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:06,395 INFO  L496      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)
[2024-08-23 16:21:06,395 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:07,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:07,902 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-08-23 16:21:07,902 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:07,902 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:07,902 INFO  L85        PathProgramCache]: Analyzing trace with hash 1657910796, now seen corresponding path program 1 times
[2024-08-23 16:21:07,902 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:07,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468339804]
[2024-08-23 16:21:07,903 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:07,903 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:07,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:08,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked.
[2024-08-23 16:21:08,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:08,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468339804]
[2024-08-23 16:21:08,066 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468339804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:08,066 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:08,066 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:08,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835067471]
[2024-08-23 16:21:08,066 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:08,066 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:08,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:08,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:08,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:08,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,067 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:08,068 INFO  L496      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)
[2024-08-23 16:21:08,068 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,068 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:08,496 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2024-08-23 16:21:08,496 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:08,497 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:08,497 INFO  L85        PathProgramCache]: Analyzing trace with hash 183566757, now seen corresponding path program 1 times
[2024-08-23 16:21:08,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:08,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040018791]
[2024-08-23 16:21:08,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:08,497 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:08,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:08,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked.
[2024-08-23 16:21:08,848 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:08,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040018791]
[2024-08-23 16:21:08,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040018791] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:08,848 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:08,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:08,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137138550]
[2024-08-23 16:21:08,848 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:08,849 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:08,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:08,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:08,849 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:08,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,849 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:08,850 INFO  L496      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)
[2024-08-23 16:21:08,850 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:08,850 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:08,850 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:09,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:09,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:09,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:09,237 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2024-08-23 16:21:09,237 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:09,237 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:09,237 INFO  L85        PathProgramCache]: Analyzing trace with hash 556838318, now seen corresponding path program 1 times
[2024-08-23 16:21:09,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:09,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394805062]
[2024-08-23 16:21:09,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:09,238 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:09,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:09,265 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:09,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:09,299 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:09,300 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:09,300 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:09,300 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:09,300 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2024-08-23 16:21:09,301 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:21:09,301 WARN  L234   ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:09,301 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances.
[2024-08-23 16:21:09,334 INFO  L144    ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions.
[2024-08-23 16:21:09,336 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:09,336 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:09,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:09,338 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)
[2024-08-23 16:21:09,339 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
[2024-08-23 16:21:09,341 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:09,341 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:09,342 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:09,342 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:09,824 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:09,824 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:09,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -4854431, now seen corresponding path program 1 times
[2024-08-23 16:21:09,824 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:09,824 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155477309]
[2024-08-23 16:21:09,824 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:09,825 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:09,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:09,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2024-08-23 16:21:09,850 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:09,850 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155477309]
[2024-08-23 16:21:09,926 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155477309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:09,926 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:09,926 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:09,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354431365]
[2024-08-23 16:21:09,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:09,927 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:09,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:09,928 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:09,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:09,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:09,928 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:09,928 INFO  L496      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)
[2024-08-23 16:21:09,928 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,442 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2024-08-23 16:21:11,442 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:11,443 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:11,443 INFO  L85        PathProgramCache]: Analyzing trace with hash -771582957, now seen corresponding path program 1 times
[2024-08-23 16:21:11,443 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:11,443 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160127861]
[2024-08-23 16:21:11,443 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:11,443 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:11,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:11,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked.
[2024-08-23 16:21:11,563 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:11,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160127861]
[2024-08-23 16:21:11,563 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160127861] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:11,563 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:11,563 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:11,563 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313836368]
[2024-08-23 16:21:11,564 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:11,564 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:11,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:11,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:11,565 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:11,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,565 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:11,565 INFO  L496      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)
[2024-08-23 16:21:11,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,565 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:11,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:11,971 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2024-08-23 16:21:11,972 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:11,972 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:11,972 INFO  L85        PathProgramCache]: Analyzing trace with hash -646470391, now seen corresponding path program 1 times
[2024-08-23 16:21:11,972 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:11,972 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753765666]
[2024-08-23 16:21:11,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:11,972 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:12,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:12,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 301 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked.
[2024-08-23 16:21:12,344 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:12,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753765666]
[2024-08-23 16:21:12,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753765666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:12,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:12,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:12,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179824531]
[2024-08-23 16:21:12,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:12,345 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:12,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:12,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:12,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:12,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:12,346 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:12,346 INFO  L496      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)
[2024-08-23 16:21:12,346 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:12,346 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:12,346 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:12,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:12,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:12,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:12,741 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2024-08-23 16:21:12,742 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:12,742 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:12,742 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451212480, now seen corresponding path program 1 times
[2024-08-23 16:21:12,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:12,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143909279]
[2024-08-23 16:21:12,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:12,742 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:12,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:12,772 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:12,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:12,810 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:12,810 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:12,811 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:12,811 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:12,811 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-08-23 16:21:12,812 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-08-23 16:21:12,812 WARN  L234   ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:12,812 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances.
[2024-08-23 16:21:12,857 INFO  L144    ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions.
[2024-08-23 16:21:12,859 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:12,859 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:12,859 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:12,861 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)
[2024-08-23 16:21:12,862 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
[2024-08-23 16:21:12,873 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:12,873 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:12,873 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:12,873 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:13,424 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:13,424 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:13,424 INFO  L85        PathProgramCache]: Analyzing trace with hash -1504556202, now seen corresponding path program 1 times
[2024-08-23 16:21:13,424 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:13,424 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814116721]
[2024-08-23 16:21:13,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:13,425 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:13,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:13,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2024-08-23 16:21:13,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:13,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814116721]
[2024-08-23 16:21:13,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814116721] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:13,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:13,452 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:13,452 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669874050]
[2024-08-23 16:21:13,452 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:13,452 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:13,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:13,453 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:13,453 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:13,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:13,453 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:13,453 INFO  L496      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)
[2024-08-23 16:21:13,453 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,291 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2024-08-23 16:21:15,292 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:15,292 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:15,292 INFO  L85        PathProgramCache]: Analyzing trace with hash 388400564, now seen corresponding path program 1 times
[2024-08-23 16:21:15,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:15,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926218618]
[2024-08-23 16:21:15,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:15,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:15,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:15,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked.
[2024-08-23 16:21:15,416 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:15,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926218618]
[2024-08-23 16:21:15,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926218618] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:15,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:15,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:15,416 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564506747]
[2024-08-23 16:21:15,416 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:15,417 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:15,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:15,417 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:15,417 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:15,417 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,417 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:15,417 INFO  L496      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)
[2024-08-23 16:21:15,417 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,417 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:15,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:15,813 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2024-08-23 16:21:15,813 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:15,813 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:15,813 INFO  L85        PathProgramCache]: Analyzing trace with hash 1407372154, now seen corresponding path program 2 times
[2024-08-23 16:21:15,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:15,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334271371]
[2024-08-23 16:21:15,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:15,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:15,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:16,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 345 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked.
[2024-08-23 16:21:16,085 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:16,085 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334271371]
[2024-08-23 16:21:16,085 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334271371] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:16,085 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:16,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:16,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972564701]
[2024-08-23 16:21:16,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:16,085 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:16,085 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:16,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:16,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:16,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:16,086 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:16,086 INFO  L496      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)
[2024-08-23 16:21:16,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:16,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:16,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:16,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:16,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:16,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:16,600 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2024-08-23 16:21:16,600 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:16,601 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:16,601 INFO  L85        PathProgramCache]: Analyzing trace with hash -1679596196, now seen corresponding path program 1 times
[2024-08-23 16:21:16,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:16,601 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341926871]
[2024-08-23 16:21:16,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:16,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:16,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:16,634 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:16,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:16,686 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:16,687 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:16,687 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:16,687 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:16,687 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2024-08-23 16:21:16,688 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:16,689 WARN  L234   ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:16,689 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances.
[2024-08-23 16:21:16,724 INFO  L144    ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions.
[2024-08-23 16:21:16,726 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:16,727 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:16,727 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:16,728 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)
[2024-08-23 16:21:16,730 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
[2024-08-23 16:21:16,733 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:16,734 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:16,734 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:16,735 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:17,553 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:17,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:17,553 INFO  L85        PathProgramCache]: Analyzing trace with hash -1045672313, now seen corresponding path program 1 times
[2024-08-23 16:21:17,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:17,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255208204]
[2024-08-23 16:21:17,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:17,554 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:17,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:17,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-08-23 16:21:17,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:17,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255208204]
[2024-08-23 16:21:17,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255208204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:17,594 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:17,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:17,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864986348]
[2024-08-23 16:21:17,594 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:17,595 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:17,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:17,595 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:17,595 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:17,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:17,595 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:17,596 INFO  L496      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)
[2024-08-23 16:21:17,596 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:19,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:19,995 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2024-08-23 16:21:19,995 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:19,995 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:19,995 INFO  L85        PathProgramCache]: Analyzing trace with hash -959167556, now seen corresponding path program 1 times
[2024-08-23 16:21:19,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:19,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313191957]
[2024-08-23 16:21:19,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:19,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:20,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:20,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2024-08-23 16:21:20,195 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:20,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313191957]
[2024-08-23 16:21:20,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313191957] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:20,195 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:20,195 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:20,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719689903]
[2024-08-23 16:21:20,196 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:20,196 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:20,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:20,196 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:20,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:20,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:20,197 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:20,197 INFO  L496      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)
[2024-08-23 16:21:20,197 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:20,197 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:20,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:20,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:20,906 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2024-08-23 16:21:20,906 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:20,906 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:20,906 INFO  L85        PathProgramCache]: Analyzing trace with hash -111740984, now seen corresponding path program 2 times
[2024-08-23 16:21:20,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:20,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377511551]
[2024-08-23 16:21:20,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:20,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:20,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:21,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 392 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2024-08-23 16:21:21,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:21,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377511551]
[2024-08-23 16:21:21,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377511551] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:21,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:21,199 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:21,199 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584410346]
[2024-08-23 16:21:21,199 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:21,200 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:21,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:21,200 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:21,200 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:21,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:21,200 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:21,200 INFO  L496      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)
[2024-08-23 16:21:21,201 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:21,201 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:21,201 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:21,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:21,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:21,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:21,770 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2024-08-23 16:21:21,770 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:21,771 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:21,771 INFO  L85        PathProgramCache]: Analyzing trace with hash 109826905, now seen corresponding path program 1 times
[2024-08-23 16:21:21,771 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:21,771 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037237451]
[2024-08-23 16:21:21,771 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:21,771 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:21,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:21,805 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:21,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:21,848 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:21,849 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:21,849 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:21,849 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:21,849 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2024-08-23 16:21:21,850 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:21,850 WARN  L234   ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:21,850 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances.
[2024-08-23 16:21:21,897 INFO  L144    ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions.
[2024-08-23 16:21:21,899 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:21,899 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:21,899 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:21,901 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)
[2024-08-23 16:21:21,902 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
[2024-08-23 16:21:21,904 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:21,904 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:21,904 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:21,905 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:22,562 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:22,562 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:22,562 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714892913, now seen corresponding path program 1 times
[2024-08-23 16:21:22,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:22,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312382329]
[2024-08-23 16:21:22,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:22,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:22,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:22,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-08-23 16:21:22,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:22,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312382329]
[2024-08-23 16:21:22,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312382329] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:22,595 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:22,595 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:22,595 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460560280]
[2024-08-23 16:21:22,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:22,595 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:22,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:22,595 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:22,595 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:22,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:22,595 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:22,595 INFO  L496      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)
[2024-08-23 16:21:22,596 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:24,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:24,858 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2024-08-23 16:21:24,858 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:24,858 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:24,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -772914855, now seen corresponding path program 1 times
[2024-08-23 16:21:24,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:24,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021818728]
[2024-08-23 16:21:24,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:24,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:24,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:24,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2024-08-23 16:21:24,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:24,998 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021818728]
[2024-08-23 16:21:24,998 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021818728] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:24,998 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:24,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:24,998 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036598217]
[2024-08-23 16:21:24,998 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:24,999 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:24,999 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:25,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:25,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:25,002 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,002 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:25,002 INFO  L496      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)
[2024-08-23 16:21:25,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:25,445 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2024-08-23 16:21:25,445 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:25,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:25,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -877403775, now seen corresponding path program 2 times
[2024-08-23 16:21:25,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:25,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435171817]
[2024-08-23 16:21:25,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:25,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:25,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:25,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked.
[2024-08-23 16:21:25,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:25,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435171817]
[2024-08-23 16:21:25,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435171817] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:25,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:25,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:25,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456484411]
[2024-08-23 16:21:25,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:25,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:25,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:25,769 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:25,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:25,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,770 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:25,770 INFO  L496      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)
[2024-08-23 16:21:25,770 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:25,770 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:25,770 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:26,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:26,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:26,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:26,398 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2024-08-23 16:21:26,399 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:26,399 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:26,399 INFO  L85        PathProgramCache]: Analyzing trace with hash -1656167278, now seen corresponding path program 1 times
[2024-08-23 16:21:26,399 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:26,399 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437490121]
[2024-08-23 16:21:26,399 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:26,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:26,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:26,438 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:26,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:26,483 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:26,484 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:26,484 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:26,484 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:26,484 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2024-08-23 16:21:26,485 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:26,485 WARN  L234   ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:26,485 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances.
[2024-08-23 16:21:26,533 INFO  L144    ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions.
[2024-08-23 16:21:26,539 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:26,539 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:26,539 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:26,541 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)
[2024-08-23 16:21:26,543 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
[2024-08-23 16:21:26,545 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:26,545 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:26,546 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:26,546 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:27,287 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:27,288 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:27,288 INFO  L85        PathProgramCache]: Analyzing trace with hash -207810923, now seen corresponding path program 1 times
[2024-08-23 16:21:27,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:27,288 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567978249]
[2024-08-23 16:21:27,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:27,288 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:27,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:27,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2024-08-23 16:21:27,479 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:27,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567978249]
[2024-08-23 16:21:27,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567978249] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:27,479 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:27,479 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:27,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337852702]
[2024-08-23 16:21:27,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:27,480 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:27,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:27,480 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:27,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:27,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:27,480 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:27,480 INFO  L496      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)
[2024-08-23 16:21:27,480 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:29,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:29,805 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2024-08-23 16:21:29,805 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:29,805 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:29,806 INFO  L85        PathProgramCache]: Analyzing trace with hash -214368145, now seen corresponding path program 1 times
[2024-08-23 16:21:29,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:29,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093929177]
[2024-08-23 16:21:29,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:29,806 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:29,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:29,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2024-08-23 16:21:29,950 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:29,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093929177]
[2024-08-23 16:21:29,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093929177] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:29,950 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:29,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:29,950 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124628149]
[2024-08-23 16:21:29,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:29,950 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:29,950 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:29,951 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:29,951 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:29,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:29,951 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:29,951 INFO  L496      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)
[2024-08-23 16:21:29,951 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:29,951 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:30,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:30,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:30,483 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2024-08-23 16:21:30,483 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:30,484 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:30,484 INFO  L85        PathProgramCache]: Analyzing trace with hash -2114919891, now seen corresponding path program 2 times
[2024-08-23 16:21:30,484 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:30,484 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981093317]
[2024-08-23 16:21:30,484 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:30,484 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:30,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:30,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 495 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked.
[2024-08-23 16:21:30,825 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:30,825 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981093317]
[2024-08-23 16:21:30,825 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981093317] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:30,825 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:30,826 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:30,826 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447277784]
[2024-08-23 16:21:30,826 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:30,826 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:30,826 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:30,827 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:30,827 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:30,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:30,827 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:30,829 INFO  L496      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)
[2024-08-23 16:21:30,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:30,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:30,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:31,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:31,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:31,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:31,912 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2024-08-23 16:21:31,912 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:31,912 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:31,912 INFO  L85        PathProgramCache]: Analyzing trace with hash 1681090533, now seen corresponding path program 1 times
[2024-08-23 16:21:31,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:31,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522654134]
[2024-08-23 16:21:31,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:31,913 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:31,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:31,973 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:32,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:32,040 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:32,040 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:32,040 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:32,040 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:32,041 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2024-08-23 16:21:32,041 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:32,042 WARN  L234   ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:32,042 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances.
[2024-08-23 16:21:32,095 INFO  L144    ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions.
[2024-08-23 16:21:32,098 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:32,098 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:32,099 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:32,100 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)
[2024-08-23 16:21:32,102 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
[2024-08-23 16:21:32,106 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:32,107 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:32,107 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:32,107 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:33,094 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:33,095 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:33,095 INFO  L85        PathProgramCache]: Analyzing trace with hash 903579284, now seen corresponding path program 1 times
[2024-08-23 16:21:33,095 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:33,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330548040]
[2024-08-23 16:21:33,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:33,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:33,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:33,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2024-08-23 16:21:33,144 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:33,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330548040]
[2024-08-23 16:21:33,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330548040] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:33,145 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:33,145 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:33,145 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874645011]
[2024-08-23 16:21:33,145 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:33,145 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:33,146 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:33,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:33,146 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:33,146 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:33,146 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:33,147 INFO  L496      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)
[2024-08-23 16:21:33,147 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,137 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2024-08-23 16:21:36,137 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:36,137 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:36,137 INFO  L85        PathProgramCache]: Analyzing trace with hash -1829323341, now seen corresponding path program 1 times
[2024-08-23 16:21:36,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:36,138 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423928061]
[2024-08-23 16:21:36,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:36,138 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:36,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:36,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked.
[2024-08-23 16:21:36,300 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:36,300 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423928061]
[2024-08-23 16:21:36,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423928061] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:36,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:36,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:36,301 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631434458]
[2024-08-23 16:21:36,301 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:36,301 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:36,301 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:36,302 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:36,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:36,302 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,302 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:36,302 INFO  L496      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)
[2024-08-23 16:21:36,302 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,302 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:36,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:36,774 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2024-08-23 16:21:36,775 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:36,775 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:36,775 INFO  L85        PathProgramCache]: Analyzing trace with hash -1069669177, now seen corresponding path program 2 times
[2024-08-23 16:21:36,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:36,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157665932]
[2024-08-23 16:21:36,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:36,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:36,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:37,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 551 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked.
[2024-08-23 16:21:37,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:37,295 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157665932]
[2024-08-23 16:21:37,295 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157665932] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:37,295 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:37,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:37,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647039199]
[2024-08-23 16:21:37,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:37,295 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:37,296 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:37,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:37,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:37,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:37,296 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:37,296 INFO  L496      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)
[2024-08-23 16:21:37,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:37,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:37,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:38,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:38,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:38,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:38,098 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2024-08-23 16:21:38,099 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:38,099 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:38,099 INFO  L85        PathProgramCache]: Analyzing trace with hash -555687054, now seen corresponding path program 1 times
[2024-08-23 16:21:38,099 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:38,099 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996010434]
[2024-08-23 16:21:38,099 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:38,099 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:38,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:38,140 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:38,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:38,193 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:38,193 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:38,194 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:38,194 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:38,194 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2024-08-23 16:21:38,195 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:38,195 WARN  L234   ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:38,195 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances.
[2024-08-23 16:21:38,246 INFO  L144    ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions.
[2024-08-23 16:21:38,249 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:38,249 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:38,249 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:38,251 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)
[2024-08-23 16:21:38,251 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
[2024-08-23 16:21:38,258 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:38,258 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:38,258 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:38,259 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:39,135 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:39,136 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:39,136 INFO  L85        PathProgramCache]: Analyzing trace with hash -422175297, now seen corresponding path program 1 times
[2024-08-23 16:21:39,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:39,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436322448]
[2024-08-23 16:21:39,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:39,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:39,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:39,173 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked.
[2024-08-23 16:21:39,173 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:39,173 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436322448]
[2024-08-23 16:21:39,173 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436322448] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:39,173 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:39,173 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:39,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675319729]
[2024-08-23 16:21:39,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:39,173 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:39,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:39,174 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:39,174 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:39,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:39,174 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:39,174 INFO  L496      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)
[2024-08-23 16:21:39,174 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,233 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2024-08-23 16:21:42,233 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:42,233 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:42,233 INFO  L85        PathProgramCache]: Analyzing trace with hash 1945545468, now seen corresponding path program 1 times
[2024-08-23 16:21:42,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:42,233 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310129623]
[2024-08-23 16:21:42,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:42,233 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:42,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:42,399 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked.
[2024-08-23 16:21:42,399 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:42,399 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310129623]
[2024-08-23 16:21:42,399 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310129623] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:42,399 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:42,399 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:42,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458939853]
[2024-08-23 16:21:42,399 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:42,399 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:42,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:42,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:42,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:42,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,400 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:42,400 INFO  L496      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)
[2024-08-23 16:21:42,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:42,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:42,915 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2024-08-23 16:21:42,915 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:42,915 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:42,915 INFO  L85        PathProgramCache]: Analyzing trace with hash -1506206916, now seen corresponding path program 2 times
[2024-08-23 16:21:42,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:42,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448154916]
[2024-08-23 16:21:42,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:42,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:42,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:43,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-08-23 16:21:43,546 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:43,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448154916]
[2024-08-23 16:21:43,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448154916] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:43,547 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:43,547 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:43,547 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440509803]
[2024-08-23 16:21:43,547 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:43,547 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:43,547 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:43,548 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:43,548 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:43,548 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:43,548 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:43,549 INFO  L496      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)
[2024-08-23 16:21:43,549 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:43,549 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:43,549 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:44,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:44,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:44,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:44,614 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2024-08-23 16:21:44,614 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:44,614 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:44,614 INFO  L85        PathProgramCache]: Analyzing trace with hash 1420630727, now seen corresponding path program 1 times
[2024-08-23 16:21:44,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:44,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258590099]
[2024-08-23 16:21:44,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:44,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:44,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:44,680 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:44,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:44,753 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:44,753 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:44,753 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:44,753 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:44,754 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2024-08-23 16:21:44,754 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:44,755 WARN  L234   ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:44,755 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances.
[2024-08-23 16:21:44,812 INFO  L144    ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions.
[2024-08-23 16:21:44,816 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:44,816 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:44,816 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:44,819 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)
[2024-08-23 16:21:44,821 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
[2024-08-23 16:21:44,824 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:44,824 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:44,824 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:44,824 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:45,805 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:45,806 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:45,806 INFO  L85        PathProgramCache]: Analyzing trace with hash 1115156877, now seen corresponding path program 1 times
[2024-08-23 16:21:45,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:45,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663080636]
[2024-08-23 16:21:45,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:45,806 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:45,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:45,843 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2024-08-23 16:21:45,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:45,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663080636]
[2024-08-23 16:21:45,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663080636] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:45,844 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:45,844 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:45,844 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937400282]
[2024-08-23 16:21:45,844 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:45,844 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:45,844 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:45,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:45,845 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:45,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:45,845 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:45,845 INFO  L496      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)
[2024-08-23 16:21:45,845 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:49,224 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:49,224 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2024-08-23 16:21:49,224 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:49,224 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:49,224 INFO  L85        PathProgramCache]: Analyzing trace with hash 1363810088, now seen corresponding path program 1 times
[2024-08-23 16:21:49,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:49,224 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52938104]
[2024-08-23 16:21:49,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:49,224 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:49,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:49,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked.
[2024-08-23 16:21:49,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:49,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52938104]
[2024-08-23 16:21:49,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52938104] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:49,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:49,397 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:49,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544676072]
[2024-08-23 16:21:49,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:49,398 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:49,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:49,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:49,399 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:49,399 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:49,399 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:49,399 INFO  L496      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)
[2024-08-23 16:21:49,399 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:49,399 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:50,135 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:50,135 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:50,135 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2024-08-23 16:21:50,135 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:50,135 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:50,135 INFO  L85        PathProgramCache]: Analyzing trace with hash -640937830, now seen corresponding path program 2 times
[2024-08-23 16:21:50,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:50,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221038829]
[2024-08-23 16:21:50,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:50,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:50,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:50,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 672 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked.
[2024-08-23 16:21:50,530 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:50,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221038829]
[2024-08-23 16:21:50,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221038829] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:50,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:50,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:50,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925229994]
[2024-08-23 16:21:50,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:50,531 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:50,531 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:50,532 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:50,532 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:50,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:50,532 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:50,532 INFO  L496      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)
[2024-08-23 16:21:50,532 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:50,532 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:50,532 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:51,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:51,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:51,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:51,600 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2024-08-23 16:21:51,600 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:51,600 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:51,600 INFO  L85        PathProgramCache]: Analyzing trace with hash -638903239, now seen corresponding path program 1 times
[2024-08-23 16:21:51,600 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:51,600 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291209796]
[2024-08-23 16:21:51,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:51,600 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:51,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:51,651 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:51,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:51,714 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:51,715 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:51,715 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:51,715 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:51,715 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2024-08-23 16:21:51,716 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:51,716 WARN  L234   ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:51,716 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances.
[2024-08-23 16:21:51,763 INFO  L144    ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions.
[2024-08-23 16:21:51,766 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:51,766 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:51,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:51,767 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)
[2024-08-23 16:21:51,768 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
[2024-08-23 16:21:51,770 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:51,770 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:51,770 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:51,770 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:21:52,953 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:52,953 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:52,953 INFO  L85        PathProgramCache]: Analyzing trace with hash -1621383539, now seen corresponding path program 1 times
[2024-08-23 16:21:52,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:52,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557355694]
[2024-08-23 16:21:52,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:52,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:52,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:52,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked.
[2024-08-23 16:21:52,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:52,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557355694]
[2024-08-23 16:21:52,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557355694] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:52,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:52,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:21:52,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980522097]
[2024-08-23 16:21:52,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:52,993 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:21:52,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:52,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:21:52,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:21:52,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:52,993 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:52,993 INFO  L496      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)
[2024-08-23 16:21:52,993 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:56,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:56,734 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2024-08-23 16:21:56,734 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:56,734 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:56,734 INFO  L85        PathProgramCache]: Analyzing trace with hash -1835100078, now seen corresponding path program 1 times
[2024-08-23 16:21:56,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:56,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460577808]
[2024-08-23 16:21:56,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:56,734 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:56,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:56,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-08-23 16:21:56,921 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:56,921 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460577808]
[2024-08-23 16:21:56,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460577808] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:56,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:56,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:21:56,921 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7807083]
[2024-08-23 16:21:56,921 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:56,922 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:21:56,922 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:56,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:21:56,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:21:56,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:56,922 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:56,923 INFO  L496      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)
[2024-08-23 16:21:56,923 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:56,923 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:57,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:57,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:57,472 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2024-08-23 16:21:57,472 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:57,472 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:57,472 INFO  L85        PathProgramCache]: Analyzing trace with hash -391148730, now seen corresponding path program 2 times
[2024-08-23 16:21:57,472 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:57,472 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900642405]
[2024-08-23 16:21:57,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:57,473 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:57,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:21:57,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 737 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked.
[2024-08-23 16:21:57,887 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:21:57,887 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900642405]
[2024-08-23 16:21:57,887 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900642405] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:21:57,887 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:21:57,888 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:21:57,888 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377198278]
[2024-08-23 16:21:57,888 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:21:57,888 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:21:57,888 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:21:57,889 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:21:57,889 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:21:57,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:57,889 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:21:57,889 INFO  L496      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)
[2024-08-23 16:21:57,889 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:57,889 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:57,889 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:59,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:21:59,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:21:59,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:21:59,227 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2024-08-23 16:21:59,227 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:21:59,227 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:21:59,228 INFO  L85        PathProgramCache]: Analyzing trace with hash 692222237, now seen corresponding path program 1 times
[2024-08-23 16:21:59,228 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:21:59,228 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244317786]
[2024-08-23 16:21:59,228 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:21:59,228 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:21:59,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:59,301 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:21:59,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:21:59,386 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:21:59,386 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:21:59,387 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:21:59,387 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:21:59,387 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2024-08-23 16:21:59,388 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:21:59,388 WARN  L234   ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:21:59,388 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances.
[2024-08-23 16:21:59,459 INFO  L144    ThreadInstanceAdder]: Constructed 23 joinOtherThreadTransitions.
[2024-08-23 16:21:59,465 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:59,466 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:21:59,466 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:21:59,467 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)
[2024-08-23 16:21:59,469 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
[2024-08-23 16:21:59,473 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:21:59,473 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:21:59,473 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:21:59,474 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:00,777 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:00,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:00,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 1944825546, now seen corresponding path program 1 times
[2024-08-23 16:22:00,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:00,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990880574]
[2024-08-23 16:22:00,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:00,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:00,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:00,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked.
[2024-08-23 16:22:00,819 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:00,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990880574]
[2024-08-23 16:22:00,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990880574] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:00,820 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:00,820 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:00,820 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709000304]
[2024-08-23 16:22:00,820 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:00,821 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:00,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:00,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:00,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:00,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:00,821 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:00,821 INFO  L496      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)
[2024-08-23 16:22:00,822 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:04,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:04,975 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2024-08-23 16:22:04,975 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:04,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:04,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 429775531, now seen corresponding path program 1 times
[2024-08-23 16:22:04,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:04,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271577198]
[2024-08-23 16:22:04,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:04,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:05,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:05,173 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked.
[2024-08-23 16:22:05,173 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:05,173 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271577198]
[2024-08-23 16:22:05,173 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271577198] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:05,173 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:05,173 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:05,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268803050]
[2024-08-23 16:22:05,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:05,174 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:05,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:05,174 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:05,174 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:05,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:05,174 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:05,174 INFO  L496      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)
[2024-08-23 16:22:05,174 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:05,175 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:05,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:05,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:05,946 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2024-08-23 16:22:05,946 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:05,946 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:05,947 INFO  L85        PathProgramCache]: Analyzing trace with hash -1353922367, now seen corresponding path program 2 times
[2024-08-23 16:22:05,947 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:05,947 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938464485]
[2024-08-23 16:22:05,947 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:05,947 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:06,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:06,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 805 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked.
[2024-08-23 16:22:06,410 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:06,410 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938464485]
[2024-08-23 16:22:06,410 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938464485] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:06,410 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:06,410 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:06,411 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53891482]
[2024-08-23 16:22:06,411 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:06,411 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:06,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:06,411 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:06,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:06,412 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:06,412 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:06,412 INFO  L496      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)
[2024-08-23 16:22:06,412 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:06,412 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:06,412 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:07,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:07,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:07,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:07,678 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88
[2024-08-23 16:22:07,678 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:07,679 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:07,679 INFO  L85        PathProgramCache]: Analyzing trace with hash -678202945, now seen corresponding path program 1 times
[2024-08-23 16:22:07,679 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:07,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989825910]
[2024-08-23 16:22:07,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:07,679 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:07,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:07,737 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:07,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:07,809 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:07,809 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:07,809 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:07,809 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:07,810 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89
[2024-08-23 16:22:07,810 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:07,811 WARN  L234   ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:07,811 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances.
[2024-08-23 16:22:07,869 INFO  L144    ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions.
[2024-08-23 16:22:07,872 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:07,872 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:07,872 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:07,874 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)
[2024-08-23 16:22:07,875 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
[2024-08-23 16:22:07,878 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:07,879 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:07,879 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:07,879 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:09,291 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:09,291 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:09,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 665316419, now seen corresponding path program 1 times
[2024-08-23 16:22:09,291 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:09,291 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370279007]
[2024-08-23 16:22:09,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:09,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:09,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:09,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked.
[2024-08-23 16:22:09,337 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:09,337 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370279007]
[2024-08-23 16:22:09,337 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370279007] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:09,337 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:09,337 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:09,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687921160]
[2024-08-23 16:22:09,338 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:09,338 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:09,338 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:09,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:09,338 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:09,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:09,339 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:09,339 INFO  L496      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)
[2024-08-23 16:22:09,339 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:13,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:13,872 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90
[2024-08-23 16:22:13,872 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:13,872 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:13,872 INFO  L85        PathProgramCache]: Analyzing trace with hash 344200317, now seen corresponding path program 1 times
[2024-08-23 16:22:13,872 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:13,872 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469507474]
[2024-08-23 16:22:13,872 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:13,873 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:13,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:14,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked.
[2024-08-23 16:22:14,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:14,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469507474]
[2024-08-23 16:22:14,083 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469507474] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:14,083 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:14,083 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:14,083 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63042235]
[2024-08-23 16:22:14,083 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:14,083 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:14,084 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:14,084 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:14,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:14,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:14,084 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:14,084 INFO  L496      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)
[2024-08-23 16:22:14,084 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:14,084 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:14,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:14,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:14,692 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91
[2024-08-23 16:22:14,693 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:14,693 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:14,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -1719961777, now seen corresponding path program 2 times
[2024-08-23 16:22:14,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:14,693 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575973434]
[2024-08-23 16:22:14,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:14,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:14,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:15,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 876 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked.
[2024-08-23 16:22:15,288 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:15,288 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575973434]
[2024-08-23 16:22:15,288 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575973434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:15,288 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:15,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:15,288 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102960952]
[2024-08-23 16:22:15,288 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:15,289 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:15,289 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:15,289 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:15,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:15,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:15,290 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:15,290 INFO  L496      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)
[2024-08-23 16:22:15,290 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:15,290 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:15,290 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:16,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:16,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:16,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:16,692 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92
[2024-08-23 16:22:16,692 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:16,692 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:16,692 INFO  L85        PathProgramCache]: Analyzing trace with hash 2134003248, now seen corresponding path program 1 times
[2024-08-23 16:22:16,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:16,693 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60493267]
[2024-08-23 16:22:16,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:16,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:16,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:16,753 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:16,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:16,836 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:16,836 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:16,836 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:16,836 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:16,836 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93
[2024-08-23 16:22:16,837 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:16,837 WARN  L234   ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:16,837 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances.
[2024-08-23 16:22:16,888 INFO  L144    ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions.
[2024-08-23 16:22:16,891 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:16,891 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:16,891 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:16,893 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)
[2024-08-23 16:22:16,894 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
[2024-08-23 16:22:16,896 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:16,896 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:16,896 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:16,896 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:18,405 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:18,405 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:18,405 INFO  L85        PathProgramCache]: Analyzing trace with hash -718275653, now seen corresponding path program 1 times
[2024-08-23 16:22:18,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:18,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915603724]
[2024-08-23 16:22:18,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:18,405 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:18,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:18,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked.
[2024-08-23 16:22:18,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:18,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915603724]
[2024-08-23 16:22:18,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915603724] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:18,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:18,452 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:18,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829866797]
[2024-08-23 16:22:18,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:18,453 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:18,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:18,453 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:18,453 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:18,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:18,453 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:18,454 INFO  L496      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)
[2024-08-23 16:22:18,454 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:23,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:23,263 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94
[2024-08-23 16:22:23,263 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:23,263 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:23,263 INFO  L85        PathProgramCache]: Analyzing trace with hash 455969979, now seen corresponding path program 1 times
[2024-08-23 16:22:23,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:23,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692043718]
[2024-08-23 16:22:23,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:23,264 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:23,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:23,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked.
[2024-08-23 16:22:23,478 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:23,478 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692043718]
[2024-08-23 16:22:23,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692043718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:23,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:23,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:23,478 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733083407]
[2024-08-23 16:22:23,478 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:23,478 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:23,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:23,479 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:23,479 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:23,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:23,479 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:23,479 INFO  L496      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)
[2024-08-23 16:22:23,479 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:23,479 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:24,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:24,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:24,139 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95
[2024-08-23 16:22:24,139 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:24,139 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:24,139 INFO  L85        PathProgramCache]: Analyzing trace with hash 1976810157, now seen corresponding path program 2 times
[2024-08-23 16:22:24,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:24,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424578118]
[2024-08-23 16:22:24,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:24,139 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:24,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:24,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 950 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked.
[2024-08-23 16:22:24,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:24,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424578118]
[2024-08-23 16:22:24,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424578118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:24,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:24,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:24,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536165968]
[2024-08-23 16:22:24,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:24,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:24,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:24,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:24,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:24,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:24,764 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:24,764 INFO  L496      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)
[2024-08-23 16:22:24,764 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:24,764 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:24,764 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:26,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:26,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:26,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:26,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96
[2024-08-23 16:22:26,214 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:26,215 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:26,215 INFO  L85        PathProgramCache]: Analyzing trace with hash 714969246, now seen corresponding path program 1 times
[2024-08-23 16:22:26,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:26,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689512014]
[2024-08-23 16:22:26,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:26,215 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:26,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:26,274 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:26,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:26,359 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:26,359 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:26,359 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:26,359 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:26,359 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97
[2024-08-23 16:22:26,360 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:26,360 WARN  L234   ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:26,360 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances.
[2024-08-23 16:22:26,411 INFO  L144    ThreadInstanceAdder]: Constructed 26 joinOtherThreadTransitions.
[2024-08-23 16:22:26,413 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:26,414 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:26,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:26,415 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)
[2024-08-23 16:22:26,417 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
[2024-08-23 16:22:26,420 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:26,421 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:26,421 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:26,421 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:28,147 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:28,148 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:28,148 INFO  L85        PathProgramCache]: Analyzing trace with hash 655160145, now seen corresponding path program 1 times
[2024-08-23 16:22:28,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:28,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471996659]
[2024-08-23 16:22:28,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:28,148 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:28,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:28,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked.
[2024-08-23 16:22:28,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:28,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471996659]
[2024-08-23 16:22:28,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471996659] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:28,216 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:28,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:28,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064116596]
[2024-08-23 16:22:28,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:28,217 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:28,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:28,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:28,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:28,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:28,218 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:28,218 INFO  L496      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)
[2024-08-23 16:22:28,218 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:33,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:33,294 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98
[2024-08-23 16:22:33,295 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:33,295 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:33,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 1013369648, now seen corresponding path program 1 times
[2024-08-23 16:22:33,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:33,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807412652]
[2024-08-23 16:22:33,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:33,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:33,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:33,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked.
[2024-08-23 16:22:33,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:33,521 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807412652]
[2024-08-23 16:22:33,522 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807412652] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:33,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:33,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:33,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600892180]
[2024-08-23 16:22:33,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:33,522 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:33,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:33,523 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:33,523 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:33,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:33,523 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:33,523 INFO  L496      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)
[2024-08-23 16:22:33,523 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:33,523 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:34,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:34,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:34,285 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99
[2024-08-23 16:22:34,285 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:34,285 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:34,285 INFO  L85        PathProgramCache]: Analyzing trace with hash -299463294, now seen corresponding path program 2 times
[2024-08-23 16:22:34,285 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:34,285 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981236997]
[2024-08-23 16:22:34,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:34,285 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:34,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:34,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 1027 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked.
[2024-08-23 16:22:34,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:34,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981236997]
[2024-08-23 16:22:34,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981236997] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:34,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:34,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:34,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685200941]
[2024-08-23 16:22:34,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:34,778 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:34,778 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:34,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:34,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:34,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:34,779 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:34,779 INFO  L496      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)
[2024-08-23 16:22:34,779 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:34,779 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:34,779 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:36,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:36,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:36,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:36,330 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100
[2024-08-23 16:22:36,330 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:36,330 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:36,330 INFO  L85        PathProgramCache]: Analyzing trace with hash -616105948, now seen corresponding path program 1 times
[2024-08-23 16:22:36,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:36,331 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18550281]
[2024-08-23 16:22:36,331 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:36,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:36,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:36,538 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:36,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:36,625 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:36,626 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:36,626 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:36,626 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:36,626 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101
[2024-08-23 16:22:36,627 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:36,627 WARN  L234   ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:36,627 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances.
[2024-08-23 16:22:36,687 INFO  L144    ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions.
[2024-08-23 16:22:36,690 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:36,690 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:36,690 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:36,692 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)
[2024-08-23 16:22:36,693 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
[2024-08-23 16:22:36,695 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:36,695 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:36,695 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:36,695 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:38,282 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:38,282 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:38,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 592114164, now seen corresponding path program 1 times
[2024-08-23 16:22:38,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:38,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727253038]
[2024-08-23 16:22:38,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:38,282 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:38,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:38,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked.
[2024-08-23 16:22:38,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:38,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727253038]
[2024-08-23 16:22:38,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727253038] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:38,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:38,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:38,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600420458]
[2024-08-23 16:22:38,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:38,334 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:38,334 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:38,335 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:38,335 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:38,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:38,335 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:38,335 INFO  L496      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)
[2024-08-23 16:22:38,335 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:44,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:44,179 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102
[2024-08-23 16:22:44,179 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:44,180 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:44,180 INFO  L85        PathProgramCache]: Analyzing trace with hash -815548, now seen corresponding path program 1 times
[2024-08-23 16:22:44,180 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:44,180 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130119223]
[2024-08-23 16:22:44,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:44,180 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:44,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:44,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked.
[2024-08-23 16:22:44,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:44,437 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130119223]
[2024-08-23 16:22:44,437 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130119223] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:44,437 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:44,437 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:44,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171054571]
[2024-08-23 16:22:44,437 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:44,438 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:44,438 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:44,438 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:44,438 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:44,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:44,439 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:44,439 INFO  L496      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)
[2024-08-23 16:22:44,439 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:44,439 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:45,161 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:45,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:45,162 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103
[2024-08-23 16:22:45,162 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:45,162 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:45,162 INFO  L85        PathProgramCache]: Analyzing trace with hash -15462558, now seen corresponding path program 2 times
[2024-08-23 16:22:45,162 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:45,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364773218]
[2024-08-23 16:22:45,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:45,163 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:45,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:45,686 INFO  L134       CoverageAnalysis]: Checked inductivity of 1107 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked.
[2024-08-23 16:22:45,686 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:45,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364773218]
[2024-08-23 16:22:45,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364773218] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:45,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:45,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:45,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244441362]
[2024-08-23 16:22:45,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:45,687 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:45,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:45,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:45,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:45,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:45,688 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:45,688 INFO  L496      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)
[2024-08-23 16:22:45,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:45,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:45,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:47,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:47,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:47,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:47,597 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104
[2024-08-23 16:22:47,597 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:47,598 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:47,598 INFO  L85        PathProgramCache]: Analyzing trace with hash 236030824, now seen corresponding path program 1 times
[2024-08-23 16:22:47,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:47,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188321264]
[2024-08-23 16:22:47,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:47,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:47,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:47,666 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:47,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:47,766 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:47,766 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:47,766 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:47,766 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:47,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105
[2024-08-23 16:22:47,767 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:47,767 WARN  L234   ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:47,767 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances.
[2024-08-23 16:22:47,824 INFO  L144    ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions.
[2024-08-23 16:22:47,826 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:47,828 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:47,828 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:47,830 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)
[2024-08-23 16:22:47,831 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
[2024-08-23 16:22:47,836 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:47,836 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:47,837 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:47,837 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:22:49,644 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:49,644 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:49,644 INFO  L85        PathProgramCache]: Analyzing trace with hash -1799611593, now seen corresponding path program 1 times
[2024-08-23 16:22:49,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:49,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588250278]
[2024-08-23 16:22:49,644 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:49,644 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:49,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:49,698 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked.
[2024-08-23 16:22:49,698 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:49,698 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588250278]
[2024-08-23 16:22:49,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588250278] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:49,698 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:49,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:22:49,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217901938]
[2024-08-23 16:22:49,699 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:49,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:22:49,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:49,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:22:49,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:22:49,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:49,699 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:49,699 INFO  L496      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)
[2024-08-23 16:22:49,700 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:55,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:55,395 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106
[2024-08-23 16:22:55,395 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:55,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:55,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 1025309195, now seen corresponding path program 1 times
[2024-08-23 16:22:55,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:55,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308124808]
[2024-08-23 16:22:55,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:55,396 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:55,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:55,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked.
[2024-08-23 16:22:55,642 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:55,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308124808]
[2024-08-23 16:22:55,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308124808] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:55,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:55,642 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:22:55,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288555997]
[2024-08-23 16:22:55,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:55,643 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:22:55,643 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:55,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:22:55,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:22:55,643 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:55,643 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:55,644 INFO  L496      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)
[2024-08-23 16:22:55,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:55,644 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:56,485 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:56,486 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:56,486 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107
[2024-08-23 16:22:56,486 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:56,486 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:56,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 1898062137, now seen corresponding path program 2 times
[2024-08-23 16:22:56,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:56,486 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324151217]
[2024-08-23 16:22:56,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:56,487 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:56,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:22:57,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 1190 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked.
[2024-08-23 16:22:57,044 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:22:57,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324151217]
[2024-08-23 16:22:57,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324151217] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:22:57,044 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:22:57,045 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:22:57,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90815823]
[2024-08-23 16:22:57,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:22:57,045 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:22:57,045 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:22:57,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:22:57,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:22:57,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:57,046 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:22:57,046 INFO  L496      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)
[2024-08-23 16:22:57,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:57,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:57,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:59,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:22:59,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:22:59,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:22:59,067 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108
[2024-08-23 16:22:59,067 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:22:59,068 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:22:59,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 552745946, now seen corresponding path program 1 times
[2024-08-23 16:22:59,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:22:59,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619753665]
[2024-08-23 16:22:59,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:22:59,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:22:59,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:59,175 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:22:59,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:22:59,317 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:22:59,317 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:22:59,317 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:22:59,317 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:22:59,318 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109
[2024-08-23 16:22:59,318 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:22:59,319 WARN  L234   ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:22:59,319 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances.
[2024-08-23 16:22:59,406 INFO  L144    ThreadInstanceAdder]: Constructed 29 joinOtherThreadTransitions.
[2024-08-23 16:22:59,411 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:59,411 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:22:59,411 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:22:59,413 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)
[2024-08-23 16:22:59,414 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
[2024-08-23 16:22:59,416 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:22:59,417 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:22:59,417 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:22:59,417 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:23:01,337 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:01,338 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:01,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -1302292611, now seen corresponding path program 1 times
[2024-08-23 16:23:01,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:01,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058587439]
[2024-08-23 16:23:01,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:01,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:01,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:01,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked.
[2024-08-23 16:23:01,403 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:01,403 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058587439]
[2024-08-23 16:23:01,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058587439] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:01,403 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:01,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:23:01,403 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426714838]
[2024-08-23 16:23:01,403 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:01,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:23:01,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:01,404 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:23:01,404 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:23:01,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:01,404 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:01,404 INFO  L496      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)
[2024-08-23 16:23:01,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:08,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:08,052 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110
[2024-08-23 16:23:08,053 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:08,053 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:08,053 INFO  L85        PathProgramCache]: Analyzing trace with hash -1505687601, now seen corresponding path program 1 times
[2024-08-23 16:23:08,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:08,053 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113838523]
[2024-08-23 16:23:08,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:08,053 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:08,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:08,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked.
[2024-08-23 16:23:08,318 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:08,318 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113838523]
[2024-08-23 16:23:08,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113838523] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:08,318 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:08,318 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:23:08,318 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647355348]
[2024-08-23 16:23:08,319 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:08,319 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:23:08,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:08,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:23:08,320 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:23:08,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:08,320 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:08,320 INFO  L496      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)
[2024-08-23 16:23:08,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:08,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:09,011 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:09,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:09,012 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111
[2024-08-23 16:23:09,012 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:09,012 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:09,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 156980727, now seen corresponding path program 2 times
[2024-08-23 16:23:09,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:09,012 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353953964]
[2024-08-23 16:23:09,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:09,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:09,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:09,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 1276 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked.
[2024-08-23 16:23:09,770 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:09,770 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353953964]
[2024-08-23 16:23:09,770 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353953964] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:09,770 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:09,770 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:23:09,770 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274417373]
[2024-08-23 16:23:09,770 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:09,771 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:23:09,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:09,771 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:23:09,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:23:09,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:09,772 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:09,772 INFO  L496      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)
[2024-08-23 16:23:09,772 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:09,772 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:09,772 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:11,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:11,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:11,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:23:11,854 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112
[2024-08-23 16:23:11,854 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:11,854 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:11,854 INFO  L85        PathProgramCache]: Analyzing trace with hash 1987000170, now seen corresponding path program 1 times
[2024-08-23 16:23:11,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:11,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763908436]
[2024-08-23 16:23:11,855 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:11,855 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:12,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:12,054 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:23:12,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:12,165 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:23:12,165 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:23:12,165 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:23:12,165 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:23:12,165 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113
[2024-08-23 16:23:12,166 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:23:12,166 WARN  L234   ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:23:12,166 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances.
[2024-08-23 16:23:12,226 INFO  L144    ThreadInstanceAdder]: Constructed 30 joinOtherThreadTransitions.
[2024-08-23 16:23:12,229 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:12,229 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:23:12,230 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:23:12,231 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)
[2024-08-23 16:23:12,232 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
[2024-08-23 16:23:12,235 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:23:12,235 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:23:12,236 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:12,236 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:23:14,320 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:14,321 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:14,321 INFO  L85        PathProgramCache]: Analyzing trace with hash 324958393, now seen corresponding path program 1 times
[2024-08-23 16:23:14,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:14,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460369010]
[2024-08-23 16:23:14,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:14,321 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:14,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:14,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked.
[2024-08-23 16:23:14,383 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:14,383 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460369010]
[2024-08-23 16:23:14,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460369010] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:14,384 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:14,384 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:23:14,384 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028288592]
[2024-08-23 16:23:14,384 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:14,384 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:23:14,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:14,384 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:23:14,384 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:23:14,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:14,384 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:14,385 INFO  L496      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)
[2024-08-23 16:23:14,385 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:21,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:21,860 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114
[2024-08-23 16:23:21,860 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:21,860 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:21,860 INFO  L85        PathProgramCache]: Analyzing trace with hash 1523361951, now seen corresponding path program 1 times
[2024-08-23 16:23:21,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:21,860 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115598512]
[2024-08-23 16:23:21,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:21,860 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:21,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:22,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked.
[2024-08-23 16:23:22,132 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:22,132 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115598512]
[2024-08-23 16:23:22,132 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115598512] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:22,132 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:22,132 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:23:22,133 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232322438]
[2024-08-23 16:23:22,133 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:22,133 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:23:22,133 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:22,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:23:22,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:23:22,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:22,134 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:22,134 INFO  L496      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)
[2024-08-23 16:23:22,134 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:22,134 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:23,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:23,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:23,108 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115
[2024-08-23 16:23:23,108 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:23,109 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:23,109 INFO  L85        PathProgramCache]: Analyzing trace with hash -1956281019, now seen corresponding path program 2 times
[2024-08-23 16:23:23,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:23,109 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660633972]
[2024-08-23 16:23:23,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:23,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:23,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:23,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 1365 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked.
[2024-08-23 16:23:23,728 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:23,728 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660633972]
[2024-08-23 16:23:23,729 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660633972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:23,729 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:23,729 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:23:23,729 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495744188]
[2024-08-23 16:23:23,729 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:23,729 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:23:23,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:23,730 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:23:23,730 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:23:23,730 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:23,730 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:23,730 INFO  L496      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)
[2024-08-23 16:23:23,730 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:23,730 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:23,730 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:26,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:26,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:26,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:23:26,276 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116
[2024-08-23 16:23:26,276 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:26,277 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:26,277 INFO  L85        PathProgramCache]: Analyzing trace with hash -1986041685, now seen corresponding path program 1 times
[2024-08-23 16:23:26,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:26,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600926810]
[2024-08-23 16:23:26,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:26,277 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:26,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:26,359 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:23:26,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:26,484 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:23:26,484 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:23:26,485 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:23:26,485 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:23:26,485 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117
[2024-08-23 16:23:26,485 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:23:26,485 WARN  L234   ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:23:26,485 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances.
[2024-08-23 16:23:26,548 INFO  L144    ThreadInstanceAdder]: Constructed 31 joinOtherThreadTransitions.
[2024-08-23 16:23:26,552 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:26,552 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:23:26,552 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:23:26,554 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)
[2024-08-23 16:23:26,554 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
[2024-08-23 16:23:26,558 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:23:26,558 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:23:26,558 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:26,558 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:23:28,789 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:28,789 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:28,789 INFO  L85        PathProgramCache]: Analyzing trace with hash -891346034, now seen corresponding path program 1 times
[2024-08-23 16:23:28,789 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:28,789 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175229867]
[2024-08-23 16:23:28,789 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:28,789 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:29,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:29,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked.
[2024-08-23 16:23:29,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:29,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175229867]
[2024-08-23 16:23:29,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175229867] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:29,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:29,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:23:29,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008141993]
[2024-08-23 16:23:29,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:29,026 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:23:29,026 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:29,026 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:23:29,027 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:23:29,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:29,027 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:29,027 INFO  L496      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)
[2024-08-23 16:23:29,027 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:37,010 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:37,010 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118
[2024-08-23 16:23:37,010 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:37,010 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:37,011 INFO  L85        PathProgramCache]: Analyzing trace with hash -350440380, now seen corresponding path program 1 times
[2024-08-23 16:23:37,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:37,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222145247]
[2024-08-23 16:23:37,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:37,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:37,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:37,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked.
[2024-08-23 16:23:37,292 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:37,292 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222145247]
[2024-08-23 16:23:37,292 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222145247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:37,292 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:37,292 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:23:37,292 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793719494]
[2024-08-23 16:23:37,292 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:37,293 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:23:37,293 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:37,293 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:23:37,293 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:23:37,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:37,293 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:37,293 INFO  L496      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)
[2024-08-23 16:23:37,294 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:37,294 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:38,154 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:38,154 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:38,154 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119
[2024-08-23 16:23:38,154 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:38,154 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:38,155 INFO  L85        PathProgramCache]: Analyzing trace with hash -1606860168, now seen corresponding path program 2 times
[2024-08-23 16:23:38,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:38,155 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108370147]
[2024-08-23 16:23:38,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:38,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:38,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:38,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 1457 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked.
[2024-08-23 16:23:38,925 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:38,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108370147]
[2024-08-23 16:23:38,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108370147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:38,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:38,925 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:23:38,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436273801]
[2024-08-23 16:23:38,925 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:38,925 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:23:38,925 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:38,926 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:23:38,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:23:38,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:38,926 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:38,926 INFO  L496      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)
[2024-08-23 16:23:38,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:38,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:38,926 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:41,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:41,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:41,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:23:41,541 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120
[2024-08-23 16:23:41,541 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:41,541 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:41,541 INFO  L85        PathProgramCache]: Analyzing trace with hash 697308938, now seen corresponding path program 1 times
[2024-08-23 16:23:41,541 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:41,542 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210631315]
[2024-08-23 16:23:41,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:41,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:41,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:41,628 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:23:41,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:41,758 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:23:41,758 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:23:41,758 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:23:41,758 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:23:41,759 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121
[2024-08-23 16:23:41,759 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:23:41,759 WARN  L234   ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:23:41,759 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances.
[2024-08-23 16:23:41,840 INFO  L144    ThreadInstanceAdder]: Constructed 32 joinOtherThreadTransitions.
[2024-08-23 16:23:41,843 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:41,843 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:23:41,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:23:41,845 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)
[2024-08-23 16:23:41,846 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
[2024-08-23 16:23:41,850 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:23:41,850 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:23:41,850 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:41,850 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:23:44,328 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:44,328 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:44,328 INFO  L85        PathProgramCache]: Analyzing trace with hash -956094493, now seen corresponding path program 1 times
[2024-08-23 16:23:44,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:44,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779647815]
[2024-08-23 16:23:44,328 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:44,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:44,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:44,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked.
[2024-08-23 16:23:44,393 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:44,393 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779647815]
[2024-08-23 16:23:44,393 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779647815] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:44,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:44,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:23:44,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235599350]
[2024-08-23 16:23:44,393 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:44,394 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:23:44,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:44,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:23:44,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:23:44,394 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:44,394 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:44,394 INFO  L496      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)
[2024-08-23 16:23:44,394 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:52,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:52,246 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122
[2024-08-23 16:23:52,246 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:52,246 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:52,246 INFO  L85        PathProgramCache]: Analyzing trace with hash 2004612729, now seen corresponding path program 1 times
[2024-08-23 16:23:52,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:52,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188036920]
[2024-08-23 16:23:52,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:52,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:52,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:52,548 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked.
[2024-08-23 16:23:52,548 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:52,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188036920]
[2024-08-23 16:23:52,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188036920] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:52,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:52,549 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:23:52,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081190487]
[2024-08-23 16:23:52,549 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:52,549 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:23:52,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:52,550 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:23:52,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:23:52,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:52,550 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:52,550 INFO  L496      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)
[2024-08-23 16:23:52,550 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:52,550 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:53,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:53,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:53,446 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123
[2024-08-23 16:23:53,446 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:53,446 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:53,447 INFO  L85        PathProgramCache]: Analyzing trace with hash 805176827, now seen corresponding path program 2 times
[2024-08-23 16:23:53,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:53,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070505435]
[2024-08-23 16:23:53,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:53,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:53,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:54,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 1552 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked.
[2024-08-23 16:23:54,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:54,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070505435]
[2024-08-23 16:23:54,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070505435] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:54,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:54,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:23:54,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768386988]
[2024-08-23 16:23:54,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:54,118 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:23:54,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:54,119 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:23:54,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:23:54,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:54,119 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:54,119 INFO  L496      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)
[2024-08-23 16:23:54,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:54,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:54,119 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:56,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:56,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:23:56,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:23:56,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124
[2024-08-23 16:23:56,777 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:56,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:56,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 1364852145, now seen corresponding path program 1 times
[2024-08-23 16:23:56,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:56,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330187786]
[2024-08-23 16:23:56,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:56,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:56,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:56,866 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:23:56,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:23:57,002 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:23:57,002 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:23:57,003 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:23:57,003 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:23:57,003 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125
[2024-08-23 16:23:57,003 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:23:57,004 WARN  L234   ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:23:57,004 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances.
[2024-08-23 16:23:57,075 INFO  L144    ThreadInstanceAdder]: Constructed 33 joinOtherThreadTransitions.
[2024-08-23 16:23:57,078 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:57,078 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:23:57,079 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:23:57,080 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)
[2024-08-23 16:23:57,081 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
[2024-08-23 16:23:57,084 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:23:57,084 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:23:57,085 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:23:57,085 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:23:59,681 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:23:59,681 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:23:59,681 INFO  L85        PathProgramCache]: Analyzing trace with hash -1588919425, now seen corresponding path program 1 times
[2024-08-23 16:23:59,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:23:59,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254301804]
[2024-08-23 16:23:59,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:23:59,682 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:23:59,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:23:59,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked.
[2024-08-23 16:23:59,752 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:23:59,752 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254301804]
[2024-08-23 16:23:59,752 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254301804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:23:59,752 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:23:59,752 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:23:59,752 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117763663]
[2024-08-23 16:23:59,752 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:23:59,752 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:23:59,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:23:59,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:23:59,753 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:23:59,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:23:59,753 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:23:59,753 INFO  L496      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)
[2024-08-23 16:23:59,753 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:08,420 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:08,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126
[2024-08-23 16:24:08,420 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:08,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:08,421 INFO  L85        PathProgramCache]: Analyzing trace with hash -810769880, now seen corresponding path program 1 times
[2024-08-23 16:24:08,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:08,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31474637]
[2024-08-23 16:24:08,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:08,421 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:08,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:08,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked.
[2024-08-23 16:24:08,968 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:08,968 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31474637]
[2024-08-23 16:24:08,968 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31474637] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:08,968 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:08,968 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:24:08,968 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664361658]
[2024-08-23 16:24:08,968 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:08,968 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:24:08,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:08,969 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:24:08,969 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:24:08,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:08,969 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:08,969 INFO  L496      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)
[2024-08-23 16:24:08,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:08,969 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:09,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:09,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:09,773 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127
[2024-08-23 16:24:09,773 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:09,773 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:09,773 INFO  L85        PathProgramCache]: Analyzing trace with hash -1758292856, now seen corresponding path program 2 times
[2024-08-23 16:24:09,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:09,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581470462]
[2024-08-23 16:24:09,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:09,774 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:09,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:10,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 1650 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked.
[2024-08-23 16:24:10,703 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:10,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581470462]
[2024-08-23 16:24:10,704 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581470462] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:10,704 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:10,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:24:10,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809748104]
[2024-08-23 16:24:10,704 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:10,705 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:24:10,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:10,706 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:24:10,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:24:10,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:10,706 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:10,706 INFO  L496      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)
[2024-08-23 16:24:10,706 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:10,706 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:10,707 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:13,745 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:13,745 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:13,745 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:24:13,746 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128
[2024-08-23 16:24:13,746 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:13,746 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:13,746 INFO  L85        PathProgramCache]: Analyzing trace with hash 1484829361, now seen corresponding path program 1 times
[2024-08-23 16:24:13,746 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:13,746 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571528412]
[2024-08-23 16:24:13,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:13,746 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:13,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:13,849 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:24:13,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:14,005 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:24:14,006 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:24:14,006 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:24:14,006 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:24:14,006 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129
[2024-08-23 16:24:14,007 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:24:14,007 WARN  L234   ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:24:14,007 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances.
[2024-08-23 16:24:14,078 INFO  L144    ThreadInstanceAdder]: Constructed 34 joinOtherThreadTransitions.
[2024-08-23 16:24:14,082 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:14,082 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:24:14,082 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:24:14,084 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)
[2024-08-23 16:24:14,085 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
[2024-08-23 16:24:14,088 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:24:14,089 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:24:14,090 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:14,090 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:24:16,981 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:16,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:16,981 INFO  L85        PathProgramCache]: Analyzing trace with hash 1539706757, now seen corresponding path program 1 times
[2024-08-23 16:24:16,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:16,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138926230]
[2024-08-23 16:24:16,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:16,981 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:17,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:17,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked.
[2024-08-23 16:24:17,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:17,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138926230]
[2024-08-23 16:24:17,052 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138926230] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:17,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:17,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:24:17,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679634760]
[2024-08-23 16:24:17,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:17,052 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:24:17,052 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:17,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:24:17,053 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:24:17,053 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:17,053 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:17,053 INFO  L496      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)
[2024-08-23 16:24:17,053 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:27,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:27,323 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130
[2024-08-23 16:24:27,323 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:27,323 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:27,323 INFO  L85        PathProgramCache]: Analyzing trace with hash 806096692, now seen corresponding path program 1 times
[2024-08-23 16:24:27,323 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:27,323 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93213741]
[2024-08-23 16:24:27,324 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:27,324 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:27,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:27,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked.
[2024-08-23 16:24:27,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:27,651 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93213741]
[2024-08-23 16:24:27,651 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93213741] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:27,651 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:27,651 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:24:27,651 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836405730]
[2024-08-23 16:24:27,652 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:27,652 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:24:27,652 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:27,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:24:27,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:24:27,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:27,653 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:27,653 INFO  L496      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)
[2024-08-23 16:24:27,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:27,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:28,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:28,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:28,676 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131
[2024-08-23 16:24:28,676 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:28,677 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:28,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -1669382478, now seen corresponding path program 2 times
[2024-08-23 16:24:28,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:28,677 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977303402]
[2024-08-23 16:24:28,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:28,677 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:28,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:29,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 1751 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked.
[2024-08-23 16:24:29,531 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:29,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977303402]
[2024-08-23 16:24:29,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977303402] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:29,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:29,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:24:29,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92611671]
[2024-08-23 16:24:29,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:29,532 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:24:29,532 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:29,532 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:24:29,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:24:29,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:29,533 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:29,533 INFO  L496      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)
[2024-08-23 16:24:29,533 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:29,533 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:29,533 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:33,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:33,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:33,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:24:33,043 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132
[2024-08-23 16:24:33,043 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:33,043 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:33,043 INFO  L85        PathProgramCache]: Analyzing trace with hash -855345880, now seen corresponding path program 1 times
[2024-08-23 16:24:33,043 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:33,043 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325577088]
[2024-08-23 16:24:33,043 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:33,043 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:33,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:33,141 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:24:33,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:33,302 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:24:33,302 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:24:33,302 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:24:33,302 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:24:33,303 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133
[2024-08-23 16:24:33,303 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:24:33,303 WARN  L234   ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:24:33,303 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances.
[2024-08-23 16:24:33,371 INFO  L144    ThreadInstanceAdder]: Constructed 35 joinOtherThreadTransitions.
[2024-08-23 16:24:33,374 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:33,374 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:24:33,375 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:24:33,376 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)
[2024-08-23 16:24:33,377 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
[2024-08-23 16:24:33,379 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:24:33,380 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:24:33,380 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:33,380 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:24:36,135 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:36,135 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:36,135 INFO  L85        PathProgramCache]: Analyzing trace with hash -372855520, now seen corresponding path program 1 times
[2024-08-23 16:24:36,135 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:36,135 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311192470]
[2024-08-23 16:24:36,135 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:36,135 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:36,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:36,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked.
[2024-08-23 16:24:36,207 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:36,207 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311192470]
[2024-08-23 16:24:36,208 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311192470] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:36,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:36,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:24:36,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611046607]
[2024-08-23 16:24:36,208 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:36,208 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:24:36,208 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:36,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:24:36,209 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:24:36,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:36,209 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:36,209 INFO  L496      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)
[2024-08-23 16:24:36,209 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:45,391 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:45,391 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134
[2024-08-23 16:24:45,391 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:45,392 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:45,392 INFO  L85        PathProgramCache]: Analyzing trace with hash 1625721401, now seen corresponding path program 1 times
[2024-08-23 16:24:45,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:45,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135603831]
[2024-08-23 16:24:45,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:45,392 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:45,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:45,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked.
[2024-08-23 16:24:45,866 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:45,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135603831]
[2024-08-23 16:24:45,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135603831] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:45,866 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:45,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:24:45,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878253308]
[2024-08-23 16:24:45,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:45,867 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:24:45,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:45,868 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:24:45,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:24:45,868 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:45,868 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:45,868 INFO  L496      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)
[2024-08-23 16:24:45,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:45,868 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:46,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:46,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:46,709 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135
[2024-08-23 16:24:46,709 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:46,709 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:46,709 INFO  L85        PathProgramCache]: Analyzing trace with hash -703110643, now seen corresponding path program 2 times
[2024-08-23 16:24:46,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:46,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189812262]
[2024-08-23 16:24:46,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:46,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:46,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:47,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 1855 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked.
[2024-08-23 16:24:47,582 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:47,583 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189812262]
[2024-08-23 16:24:47,583 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189812262] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:47,583 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:47,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:24:47,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257071548]
[2024-08-23 16:24:47,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:47,583 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:24:47,583 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:47,584 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:24:47,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:24:47,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:47,584 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:47,584 INFO  L496      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)
[2024-08-23 16:24:47,584 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:47,584 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:47,584 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:50,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:50,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:24:50,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:24:50,706 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136
[2024-08-23 16:24:50,706 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:50,707 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:50,707 INFO  L85        PathProgramCache]: Analyzing trace with hash -879128619, now seen corresponding path program 1 times
[2024-08-23 16:24:50,707 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:50,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267591261]
[2024-08-23 16:24:50,707 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:50,707 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:50,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:50,809 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:24:50,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:24:50,981 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:24:50,982 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:24:50,982 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:24:50,982 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:24:50,982 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137
[2024-08-23 16:24:50,983 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:24:50,983 WARN  L234   ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:24:50,983 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances.
[2024-08-23 16:24:51,053 INFO  L144    ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions.
[2024-08-23 16:24:51,057 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:51,057 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:24:51,057 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:24:51,059 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)
[2024-08-23 16:24:51,060 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
[2024-08-23 16:24:51,063 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:24:51,063 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:24:51,063 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:24:51,063 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:24:54,086 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:24:54,086 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:24:54,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -908578413, now seen corresponding path program 1 times
[2024-08-23 16:24:54,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:24:54,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395300195]
[2024-08-23 16:24:54,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:24:54,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:24:54,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:24:54,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked.
[2024-08-23 16:24:54,161 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:24:54,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395300195]
[2024-08-23 16:24:54,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395300195] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:24:54,161 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:24:54,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:24:54,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487954627]
[2024-08-23 16:24:54,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:24:54,161 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:24:54,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:24:54,162 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:24:54,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:24:54,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:24:54,162 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:24:54,162 INFO  L496      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)
[2024-08-23 16:24:54,162 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:04,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:04,618 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138
[2024-08-23 16:25:04,618 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:04,618 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:04,618 INFO  L85        PathProgramCache]: Analyzing trace with hash -534737451, now seen corresponding path program 1 times
[2024-08-23 16:25:04,618 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:04,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623745342]
[2024-08-23 16:25:04,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:04,619 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:04,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:04,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked.
[2024-08-23 16:25:04,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:04,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623745342]
[2024-08-23 16:25:04,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623745342] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:04,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:04,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:25:04,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660001970]
[2024-08-23 16:25:04,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:04,972 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:25:04,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:04,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:25:04,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:25:04,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:04,973 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:04,973 INFO  L496      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)
[2024-08-23 16:25:04,973 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:04,973 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:05,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:05,846 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:05,846 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139
[2024-08-23 16:25:05,846 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:05,846 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:05,846 INFO  L85        PathProgramCache]: Analyzing trace with hash 1664241911, now seen corresponding path program 2 times
[2024-08-23 16:25:05,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:05,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136752757]
[2024-08-23 16:25:05,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:05,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:06,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:06,715 INFO  L134       CoverageAnalysis]: Checked inductivity of 1962 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked.
[2024-08-23 16:25:06,715 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:06,715 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136752757]
[2024-08-23 16:25:06,715 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136752757] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:06,715 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:06,715 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:25:06,715 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515176415]
[2024-08-23 16:25:06,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:06,716 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:25:06,716 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:06,716 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:25:06,716 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:25:06,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:06,716 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:06,716 INFO  L496      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)
[2024-08-23 16:25:06,716 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:06,716 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:06,716 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:10,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:10,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:10,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:25:10,396 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140
[2024-08-23 16:25:10,396 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:10,396 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:10,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -1011983592, now seen corresponding path program 1 times
[2024-08-23 16:25:10,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:10,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001756310]
[2024-08-23 16:25:10,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:10,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:10,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:10,505 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:25:10,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:10,692 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:25:10,693 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:25:10,693 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:25:10,693 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:25:10,693 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141
[2024-08-23 16:25:10,693 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:25:10,694 WARN  L234   ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:25:10,694 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances.
[2024-08-23 16:25:10,796 INFO  L144    ThreadInstanceAdder]: Constructed 37 joinOtherThreadTransitions.
[2024-08-23 16:25:10,800 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:10,800 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:25:10,800 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:25:10,802 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)
[2024-08-23 16:25:10,803 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
[2024-08-23 16:25:10,806 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:25:10,806 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:25:10,807 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:10,807 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:25:14,169 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:14,169 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:14,169 INFO  L85        PathProgramCache]: Analyzing trace with hash -1543989423, now seen corresponding path program 1 times
[2024-08-23 16:25:14,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:14,169 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140228650]
[2024-08-23 16:25:14,169 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:14,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:14,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:14,248 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked.
[2024-08-23 16:25:14,248 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:14,248 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140228650]
[2024-08-23 16:25:14,248 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140228650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:14,249 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:14,249 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:25:14,249 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971465257]
[2024-08-23 16:25:14,249 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:14,249 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:25:14,249 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:14,249 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:25:14,249 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:25:14,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:14,249 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:14,250 INFO  L496      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)
[2024-08-23 16:25:14,250 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:26,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:26,210 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142
[2024-08-23 16:25:26,210 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:26,210 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:26,210 INFO  L85        PathProgramCache]: Analyzing trace with hash 973071951, now seen corresponding path program 1 times
[2024-08-23 16:25:26,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:26,211 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336910642]
[2024-08-23 16:25:26,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:26,211 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:26,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:26,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked.
[2024-08-23 16:25:26,572 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:26,572 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336910642]
[2024-08-23 16:25:26,572 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336910642] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:26,572 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:26,572 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:25:26,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767420855]
[2024-08-23 16:25:26,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:26,572 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:25:26,573 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:26,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:25:26,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:25:26,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:26,573 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:26,573 INFO  L496      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)
[2024-08-23 16:25:26,573 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:26,573 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:27,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:27,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:27,689 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143
[2024-08-23 16:25:27,689 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:27,690 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:27,690 INFO  L85        PathProgramCache]: Analyzing trace with hash -2092845629, now seen corresponding path program 2 times
[2024-08-23 16:25:27,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:27,690 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063291972]
[2024-08-23 16:25:27,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:27,690 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:27,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:28,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 2072 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 1856 trivial. 0 not checked.
[2024-08-23 16:25:28,479 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:28,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063291972]
[2024-08-23 16:25:28,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063291972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:28,480 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:28,480 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:25:28,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447408295]
[2024-08-23 16:25:28,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:28,480 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:25:28,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:28,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:25:28,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:25:28,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:28,481 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:28,481 INFO  L496      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)
[2024-08-23 16:25:28,481 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:28,481 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:28,481 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:32,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:32,657 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:32,657 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:25:32,657 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144
[2024-08-23 16:25:32,657 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:32,657 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:32,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -921257528, now seen corresponding path program 1 times
[2024-08-23 16:25:32,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:32,658 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833080263]
[2024-08-23 16:25:32,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:32,658 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:32,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:32,767 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:25:32,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:32,959 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:25:32,959 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:25:32,959 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:25:32,959 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:25:32,959 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145
[2024-08-23 16:25:32,960 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:25:32,960 WARN  L234   ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:25:32,960 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances.
[2024-08-23 16:25:33,032 INFO  L144    ThreadInstanceAdder]: Constructed 38 joinOtherThreadTransitions.
[2024-08-23 16:25:33,036 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:33,036 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:25:33,036 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:25:33,037 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)
[2024-08-23 16:25:33,038 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
[2024-08-23 16:25:33,042 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:25:33,042 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:25:33,042 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:33,042 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:25:36,402 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:36,402 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:36,402 INFO  L85        PathProgramCache]: Analyzing trace with hash -112976283, now seen corresponding path program 1 times
[2024-08-23 16:25:36,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:36,403 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509829703]
[2024-08-23 16:25:36,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:36,404 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:36,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:36,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked.
[2024-08-23 16:25:36,483 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:36,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509829703]
[2024-08-23 16:25:36,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509829703] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:36,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:36,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:25:36,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552174590]
[2024-08-23 16:25:36,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:36,484 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:25:36,484 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:36,484 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:25:36,484 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:25:36,484 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:36,484 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:36,485 INFO  L496      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)
[2024-08-23 16:25:36,485 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:47,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:47,897 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146
[2024-08-23 16:25:47,897 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:47,897 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:47,897 INFO  L85        PathProgramCache]: Analyzing trace with hash -1070280734, now seen corresponding path program 1 times
[2024-08-23 16:25:47,897 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:47,897 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878545295]
[2024-08-23 16:25:47,897 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:47,897 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:48,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:48,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked.
[2024-08-23 16:25:48,420 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:48,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878545295]
[2024-08-23 16:25:48,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878545295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:48,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:48,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:25:48,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699720545]
[2024-08-23 16:25:48,421 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:48,421 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:25:48,421 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:48,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:25:48,422 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:25:48,422 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:48,422 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:48,422 INFO  L496      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)
[2024-08-23 16:25:48,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:48,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:49,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:49,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:49,410 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147
[2024-08-23 16:25:49,410 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:49,410 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:49,411 INFO  L85        PathProgramCache]: Analyzing trace with hash 499470782, now seen corresponding path program 2 times
[2024-08-23 16:25:49,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:49,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035225961]
[2024-08-23 16:25:49,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:49,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:49,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:50,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 2185 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked.
[2024-08-23 16:25:50,343 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:50,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035225961]
[2024-08-23 16:25:50,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035225961] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:50,344 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:50,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:25:50,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879331153]
[2024-08-23 16:25:50,344 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:50,344 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:25:50,344 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:50,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:25:50,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:25:50,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:50,345 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:50,345 INFO  L496      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)
[2024-08-23 16:25:50,345 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:50,345 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:50,345 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:54,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:54,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:25:54,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:25:54,258 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148
[2024-08-23 16:25:54,258 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:54,258 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:54,258 INFO  L85        PathProgramCache]: Analyzing trace with hash -1377026272, now seen corresponding path program 1 times
[2024-08-23 16:25:54,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:54,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967185798]
[2024-08-23 16:25:54,259 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:54,259 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:54,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:54,374 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:25:54,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:25:54,586 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:25:54,587 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:25:54,587 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:25:54,587 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:25:54,587 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149
[2024-08-23 16:25:54,587 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:25:54,588 WARN  L234   ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:25:54,588 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances.
[2024-08-23 16:25:54,679 INFO  L144    ThreadInstanceAdder]: Constructed 39 joinOtherThreadTransitions.
[2024-08-23 16:25:54,687 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:54,687 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:25:54,687 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:25:54,693 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)
[2024-08-23 16:25:54,694 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
[2024-08-23 16:25:54,696 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:25:54,696 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:25:54,696 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:25:54,696 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:25:58,259 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:25:58,260 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:25:58,260 INFO  L85        PathProgramCache]: Analyzing trace with hash 576137826, now seen corresponding path program 1 times
[2024-08-23 16:25:58,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:25:58,260 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921791887]
[2024-08-23 16:25:58,260 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:25:58,260 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:25:58,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:25:58,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 2185 trivial. 0 not checked.
[2024-08-23 16:25:58,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:25:58,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921791887]
[2024-08-23 16:25:58,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921791887] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:25:58,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:25:58,346 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:25:58,346 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579394908]
[2024-08-23 16:25:58,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:25:58,346 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:25:58,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:25:58,346 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:25:58,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:25:58,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:25:58,346 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:25:58,347 INFO  L496      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)
[2024-08-23 16:25:58,347 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:10,838 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:10,839 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150
[2024-08-23 16:26:10,839 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:10,839 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:10,839 INFO  L85        PathProgramCache]: Analyzing trace with hash 1861718656, now seen corresponding path program 1 times
[2024-08-23 16:26:10,839 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:10,839 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463278117]
[2024-08-23 16:26:10,839 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:10,839 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:10,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:11,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 2109 trivial. 0 not checked.
[2024-08-23 16:26:11,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:11,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463278117]
[2024-08-23 16:26:11,424 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463278117] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:11,424 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:11,424 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:26:11,424 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246688256]
[2024-08-23 16:26:11,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:11,424 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:26:11,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:11,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:26:11,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:26:11,425 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:11,425 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:11,425 INFO  L496      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)
[2024-08-23 16:26:11,425 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:11,425 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:12,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:12,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:12,438 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151
[2024-08-23 16:26:12,439 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:12,439 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:12,439 INFO  L85        PathProgramCache]: Analyzing trace with hash -1871682370, now seen corresponding path program 2 times
[2024-08-23 16:26:12,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:12,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692475784]
[2024-08-23 16:26:12,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:12,439 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:12,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:13,434 INFO  L134       CoverageAnalysis]: Checked inductivity of 2301 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked.
[2024-08-23 16:26:13,434 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:13,434 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692475784]
[2024-08-23 16:26:13,434 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692475784] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:13,434 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:13,434 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:26:13,434 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690301178]
[2024-08-23 16:26:13,434 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:13,435 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:26:13,435 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:13,435 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:26:13,435 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:26:13,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:13,435 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:13,436 INFO  L496      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)
[2024-08-23 16:26:13,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:13,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:13,436 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:19,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:19,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:19,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:26:19,007 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152
[2024-08-23 16:26:19,007 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:19,007 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:19,008 INFO  L85        PathProgramCache]: Analyzing trace with hash 450228670, now seen corresponding path program 1 times
[2024-08-23 16:26:19,008 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:19,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530081585]
[2024-08-23 16:26:19,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:19,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:19,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:26:19,164 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:26:19,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:26:19,439 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:26:19,439 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:26:19,439 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:26:19,440 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:26:19,440 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153
[2024-08-23 16:26:19,440 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:26:19,440 WARN  L234   ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:26:19,440 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances.
[2024-08-23 16:26:19,572 INFO  L144    ThreadInstanceAdder]: Constructed 40 joinOtherThreadTransitions.
[2024-08-23 16:26:19,584 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:26:19,584 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:26:19,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:26:19,587 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)
[2024-08-23 16:26:19,588 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
[2024-08-23 16:26:19,591 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:26:19,592 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:26:19,592 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:26:19,592 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:26:24,003 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:24,003 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:24,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 955278011, now seen corresponding path program 1 times
[2024-08-23 16:26:24,003 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:24,003 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034769929]
[2024-08-23 16:26:24,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:24,004 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:24,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:24,090 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked.
[2024-08-23 16:26:24,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:24,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034769929]
[2024-08-23 16:26:24,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034769929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:24,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:24,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:26:24,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726687104]
[2024-08-23 16:26:24,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:24,091 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:26:24,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:24,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:26:24,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:26:24,091 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:24,091 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:24,091 INFO  L496      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)
[2024-08-23 16:26:24,091 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:37,992 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:37,993 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154
[2024-08-23 16:26:37,993 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:37,993 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:37,993 INFO  L85        PathProgramCache]: Analyzing trace with hash -1104561823, now seen corresponding path program 1 times
[2024-08-23 16:26:37,993 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:37,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766208371]
[2024-08-23 16:26:37,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:37,993 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:38,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:38,404 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 2223 trivial. 0 not checked.
[2024-08-23 16:26:38,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:38,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766208371]
[2024-08-23 16:26:38,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766208371] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:38,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:38,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:26:38,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345047903]
[2024-08-23 16:26:38,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:38,405 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:26:38,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:38,405 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:26:38,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:26:38,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:38,405 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:38,406 INFO  L496      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)
[2024-08-23 16:26:38,406 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:38,406 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:39,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:39,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:39,460 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155
[2024-08-23 16:26:39,460 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:39,460 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:39,460 INFO  L85        PathProgramCache]: Analyzing trace with hash -1443631065, now seen corresponding path program 2 times
[2024-08-23 16:26:39,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:39,460 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227546062]
[2024-08-23 16:26:39,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:39,461 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:39,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:40,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 2420 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 2186 trivial. 0 not checked.
[2024-08-23 16:26:40,352 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:40,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227546062]
[2024-08-23 16:26:40,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227546062] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:40,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:40,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:26:40,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704082504]
[2024-08-23 16:26:40,352 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:40,352 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:26:40,352 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:40,353 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:26:40,353 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:26:40,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:40,353 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:40,353 INFO  L496      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)
[2024-08-23 16:26:40,353 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:40,353 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:40,353 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:45,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:45,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:26:45,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:26:45,314 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156
[2024-08-23 16:26:45,314 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:45,314 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:45,314 INFO  L85        PathProgramCache]: Analyzing trace with hash 1716280915, now seen corresponding path program 1 times
[2024-08-23 16:26:45,314 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:45,314 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20025849]
[2024-08-23 16:26:45,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:45,315 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:45,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:26:45,445 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:26:45,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:26:45,676 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:26:45,676 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:26:45,676 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:26:45,677 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:26:45,677 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157
[2024-08-23 16:26:45,677 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:26:45,677 WARN  L234   ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:26:45,677 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances.
[2024-08-23 16:26:45,761 INFO  L144    ThreadInstanceAdder]: Constructed 41 joinOtherThreadTransitions.
[2024-08-23 16:26:45,765 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:26:45,765 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:26:45,766 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:26:45,767 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)
[2024-08-23 16:26:45,768 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
[2024-08-23 16:26:45,773 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:26:45,774 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:26:45,774 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:26:45,774 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:26:49,867 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:26:49,867 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:26:49,867 INFO  L85        PathProgramCache]: Analyzing trace with hash 1885790291, now seen corresponding path program 1 times
[2024-08-23 16:26:49,867 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:26:49,867 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443331650]
[2024-08-23 16:26:49,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:26:49,868 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:26:49,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:26:49,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked.
[2024-08-23 16:26:49,965 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:26:49,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443331650]
[2024-08-23 16:26:49,965 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443331650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:26:49,965 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:26:49,965 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:26:49,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789817257]
[2024-08-23 16:26:49,966 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:26:49,966 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:26:49,966 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:26:49,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:26:49,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:26:49,966 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:26:49,966 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:26:49,966 INFO  L496      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)
[2024-08-23 16:26:49,966 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:05,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:05,622 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158
[2024-08-23 16:27:05,622 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:05,622 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:05,622 INFO  L85        PathProgramCache]: Analyzing trace with hash 1594672957, now seen corresponding path program 1 times
[2024-08-23 16:27:05,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:05,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333112503]
[2024-08-23 16:27:05,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:05,623 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:05,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:06,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked.
[2024-08-23 16:27:06,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:06,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333112503]
[2024-08-23 16:27:06,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333112503] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:06,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:06,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:27:06,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033637681]
[2024-08-23 16:27:06,352 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:06,352 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:27:06,352 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:06,354 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:27:06,354 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:27:06,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:06,354 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:06,355 INFO  L496      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)
[2024-08-23 16:27:06,355 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:06,355 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:08,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:08,321 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:08,321 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159
[2024-08-23 16:27:08,321 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:08,321 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:08,321 INFO  L85        PathProgramCache]: Analyzing trace with hash -1426242041, now seen corresponding path program 2 times
[2024-08-23 16:27:08,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:08,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965373751]
[2024-08-23 16:27:08,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:08,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:08,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:09,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 2542 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 2302 trivial. 0 not checked.
[2024-08-23 16:27:09,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:09,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965373751]
[2024-08-23 16:27:09,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965373751] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:09,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:09,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:27:09,574 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028106237]
[2024-08-23 16:27:09,574 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:09,575 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:27:09,575 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:09,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:27:09,575 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:27:09,576 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:09,576 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:09,576 INFO  L496      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)
[2024-08-23 16:27:09,576 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:09,576 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:09,576 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:15,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:15,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:15,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:27:15,085 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160
[2024-08-23 16:27:15,085 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:15,085 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:15,085 INFO  L85        PathProgramCache]: Analyzing trace with hash -1545187502, now seen corresponding path program 1 times
[2024-08-23 16:27:15,085 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:15,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501658661]
[2024-08-23 16:27:15,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:15,086 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:15,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:27:15,223 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:27:15,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:27:15,464 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:27:15,464 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:27:15,464 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:27:15,464 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:27:15,464 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161
[2024-08-23 16:27:15,465 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:27:15,465 WARN  L234   ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:27:15,465 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances.
[2024-08-23 16:27:15,559 INFO  L144    ThreadInstanceAdder]: Constructed 42 joinOtherThreadTransitions.
[2024-08-23 16:27:15,563 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:27:15,563 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:27:15,564 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:27:15,565 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)
[2024-08-23 16:27:15,572 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
[2024-08-23 16:27:15,575 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:27:15,576 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:27:15,576 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:27:15,576 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:27:19,793 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:19,793 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:19,793 INFO  L85        PathProgramCache]: Analyzing trace with hash 1356813305, now seen corresponding path program 1 times
[2024-08-23 16:27:19,793 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:19,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682043248]
[2024-08-23 16:27:19,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:19,793 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:19,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:19,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 2542 trivial. 0 not checked.
[2024-08-23 16:27:19,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:19,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682043248]
[2024-08-23 16:27:19,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682043248] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:19,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:19,889 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:27:19,889 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934205052]
[2024-08-23 16:27:19,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:19,889 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:27:19,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:19,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:27:19,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:27:19,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:19,890 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:19,890 INFO  L496      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)
[2024-08-23 16:27:19,890 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:34,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:34,198 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162
[2024-08-23 16:27:34,198 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:34,198 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:34,198 INFO  L85        PathProgramCache]: Analyzing trace with hash -510100033, now seen corresponding path program 1 times
[2024-08-23 16:27:34,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:34,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931461971]
[2024-08-23 16:27:34,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:34,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:34,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:34,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 2460 trivial. 0 not checked.
[2024-08-23 16:27:34,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:34,623 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931461971]
[2024-08-23 16:27:34,623 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931461971] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:34,623 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:34,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:27:34,623 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138522070]
[2024-08-23 16:27:34,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:34,624 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:27:34,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:34,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:27:34,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:27:34,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:34,625 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:34,625 INFO  L496      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)
[2024-08-23 16:27:34,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:34,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:35,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:35,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:35,646 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163
[2024-08-23 16:27:35,646 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:35,647 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:35,647 INFO  L85        PathProgramCache]: Analyzing trace with hash -1295757779, now seen corresponding path program 2 times
[2024-08-23 16:27:35,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:35,647 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567207030]
[2024-08-23 16:27:35,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:35,647 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:35,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:36,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 2667 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 2421 trivial. 0 not checked.
[2024-08-23 16:27:36,687 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:36,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567207030]
[2024-08-23 16:27:36,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567207030] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:36,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:36,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:27:36,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918278174]
[2024-08-23 16:27:36,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:36,688 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:27:36,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:36,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:27:36,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:27:36,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:36,688 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:36,689 INFO  L496      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)
[2024-08-23 16:27:36,689 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:36,689 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:36,689 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:41,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:41,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:27:41,656 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:27:41,656 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164
[2024-08-23 16:27:41,656 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:41,657 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:41,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -1558028303, now seen corresponding path program 1 times
[2024-08-23 16:27:41,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:41,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659785859]
[2024-08-23 16:27:41,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:41,657 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:41,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:27:41,938 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:27:42,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:27:42,196 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:27:42,197 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:27:42,197 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:27:42,197 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:27:42,197 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165
[2024-08-23 16:27:42,197 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:27:42,198 WARN  L234   ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:27:42,198 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances.
[2024-08-23 16:27:42,279 INFO  L144    ThreadInstanceAdder]: Constructed 43 joinOtherThreadTransitions.
[2024-08-23 16:27:42,283 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:27:42,283 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:27:42,283 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:27:42,284 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)
[2024-08-23 16:27:42,285 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
[2024-08-23 16:27:42,288 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:27:42,288 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:27:42,288 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:27:42,288 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:27:46,756 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:27:46,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:27:46,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 746811784, now seen corresponding path program 1 times
[2024-08-23 16:27:46,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:27:46,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791573171]
[2024-08-23 16:27:46,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:27:46,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:27:46,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:27:46,855 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked.
[2024-08-23 16:27:46,856 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:27:46,856 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791573171]
[2024-08-23 16:27:46,856 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791573171] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:27:46,856 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:27:46,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:27:46,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549405012]
[2024-08-23 16:27:46,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:27:46,856 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:27:46,856 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:27:46,857 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:27:46,857 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:27:46,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:27:46,857 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:27:46,857 INFO  L496      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)
[2024-08-23 16:27:46,857 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:02,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:02,617 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166
[2024-08-23 16:28:02,617 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:02,617 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:02,617 INFO  L85        PathProgramCache]: Analyzing trace with hash 1449115956, now seen corresponding path program 1 times
[2024-08-23 16:28:02,617 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:02,617 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523633085]
[2024-08-23 16:28:02,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:02,617 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:02,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:03,059 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 2583 trivial. 0 not checked.
[2024-08-23 16:28:03,060 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:03,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523633085]
[2024-08-23 16:28:03,060 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523633085] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:03,060 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:03,060 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:28:03,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475946425]
[2024-08-23 16:28:03,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:03,060 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:28:03,060 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:03,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:28:03,061 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:28:03,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:03,061 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:03,061 INFO  L496      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)
[2024-08-23 16:28:03,061 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:03,061 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:04,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:04,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:04,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167
[2024-08-23 16:28:04,214 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:04,214 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:04,215 INFO  L85        PathProgramCache]: Analyzing trace with hash -377360840, now seen corresponding path program 2 times
[2024-08-23 16:28:04,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:04,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983689515]
[2024-08-23 16:28:04,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:04,215 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:04,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:05,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 2795 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 2543 trivial. 0 not checked.
[2024-08-23 16:28:05,186 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:05,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983689515]
[2024-08-23 16:28:05,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983689515] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:05,186 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:05,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:28:05,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313724432]
[2024-08-23 16:28:05,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:05,187 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:28:05,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:05,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:28:05,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:28:05,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:05,188 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:05,188 INFO  L496      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)
[2024-08-23 16:28:05,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:05,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:05,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:10,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:10,967 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:10,968 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:28:10,968 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168
[2024-08-23 16:28:10,968 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:10,968 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:10,968 INFO  L85        PathProgramCache]: Analyzing trace with hash 1384993607, now seen corresponding path program 1 times
[2024-08-23 16:28:10,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:10,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905865323]
[2024-08-23 16:28:10,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:10,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:11,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:28:11,119 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:28:11,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:28:11,390 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:28:11,390 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:28:11,391 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:28:11,391 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:28:11,391 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169
[2024-08-23 16:28:11,391 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:28:11,392 WARN  L234   ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:28:11,393 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances.
[2024-08-23 16:28:11,490 INFO  L144    ThreadInstanceAdder]: Constructed 44 joinOtherThreadTransitions.
[2024-08-23 16:28:11,494 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:28:11,494 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:28:11,494 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:28:11,496 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)
[2024-08-23 16:28:11,496 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
[2024-08-23 16:28:11,500 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:28:11,500 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:28:11,501 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:28:11,501 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:28:16,349 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:16,349 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:16,349 INFO  L85        PathProgramCache]: Analyzing trace with hash 1232948231, now seen corresponding path program 1 times
[2024-08-23 16:28:16,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:16,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861420228]
[2024-08-23 16:28:16,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:16,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:16,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:16,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked.
[2024-08-23 16:28:16,461 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:16,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861420228]
[2024-08-23 16:28:16,461 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861420228] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:16,461 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:16,462 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:28:16,462 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185931900]
[2024-08-23 16:28:16,462 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:16,462 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:28:16,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:16,463 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:28:16,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:28:16,463 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:16,463 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:16,463 INFO  L496      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)
[2024-08-23 16:28:16,463 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:32,979 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:32,979 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170
[2024-08-23 16:28:32,979 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:32,980 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:32,980 INFO  L85        PathProgramCache]: Analyzing trace with hash -45939229, now seen corresponding path program 1 times
[2024-08-23 16:28:32,980 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:32,980 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924678310]
[2024-08-23 16:28:32,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:32,980 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:33,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:33,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked.
[2024-08-23 16:28:33,456 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:33,456 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924678310]
[2024-08-23 16:28:33,456 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924678310] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:33,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:33,457 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:28:33,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930504401]
[2024-08-23 16:28:33,457 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:33,457 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:28:33,457 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:33,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:28:33,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:28:33,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:33,458 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:33,458 INFO  L496      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)
[2024-08-23 16:28:33,458 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:33,458 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:34,536 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:34,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:34,537 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171
[2024-08-23 16:28:34,537 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:34,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:34,537 INFO  L85        PathProgramCache]: Analyzing trace with hash 1702939565, now seen corresponding path program 2 times
[2024-08-23 16:28:34,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:34,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630337041]
[2024-08-23 16:28:34,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:34,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:34,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:35,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 2926 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 2668 trivial. 0 not checked.
[2024-08-23 16:28:35,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:35,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630337041]
[2024-08-23 16:28:35,629 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630337041] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:35,629 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:35,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:28:35,630 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413713546]
[2024-08-23 16:28:35,630 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:35,630 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:28:35,630 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:35,631 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:28:35,631 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:28:35,631 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:35,631 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:35,631 INFO  L496      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)
[2024-08-23 16:28:35,631 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:35,631 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:35,631 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:41,663 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:41,663 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:28:41,664 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:28:41,664 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172
[2024-08-23 16:28:41,664 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:41,664 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:41,664 INFO  L85        PathProgramCache]: Analyzing trace with hash 402470211, now seen corresponding path program 1 times
[2024-08-23 16:28:41,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:41,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592802942]
[2024-08-23 16:28:41,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:41,664 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:41,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:28:41,819 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:28:41,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:28:42,104 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:28:42,105 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:28:42,105 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:28:42,105 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:28:42,105 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173
[2024-08-23 16:28:42,106 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:28:42,106 WARN  L234   ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:28:42,106 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances.
[2024-08-23 16:28:42,196 INFO  L144    ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions.
[2024-08-23 16:28:42,199 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:28:42,200 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:28:42,200 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:28:42,221 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)
[2024-08-23 16:28:42,223 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
[2024-08-23 16:28:42,225 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:28:42,226 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:28:42,226 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:28:42,226 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-08-23 16:28:47,068 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:28:47,068 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:28:47,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 715125641, now seen corresponding path program 1 times
[2024-08-23 16:28:47,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:28:47,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313812793]
[2024-08-23 16:28:47,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:28:47,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:28:47,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:28:47,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 2926 trivial. 0 not checked.
[2024-08-23 16:28:47,177 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:28:47,178 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313812793]
[2024-08-23 16:28:47,178 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313812793] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:28:47,178 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:28:47,178 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-08-23 16:28:47,178 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258444001]
[2024-08-23 16:28:47,178 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:28:47,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-08-23 16:28:47,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:28:47,178 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-08-23 16:28:47,178 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-08-23 16:28:47,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:28:47,179 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:28:47,179 INFO  L496      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)
[2024-08-23 16:28:47,179 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:03,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:03,619 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174
[2024-08-23 16:29:03,619 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:29:03,620 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:29:03,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 484239685, now seen corresponding path program 1 times
[2024-08-23 16:29:03,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:29:03,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489547339]
[2024-08-23 16:29:03,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:29:03,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:29:03,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:29:04,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 2838 trivial. 0 not checked.
[2024-08-23 16:29:04,226 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:29:04,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489547339]
[2024-08-23 16:29:04,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489547339] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:29:04,226 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:29:04,226 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-08-23 16:29:04,226 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87199498]
[2024-08-23 16:29:04,226 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:29:04,226 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-08-23 16:29:04,227 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:29:04,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-08-23 16:29:04,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-08-23 16:29:04,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:04,227 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:29:04,227 INFO  L496      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)
[2024-08-23 16:29:04,227 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:04,227 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:05,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:05,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:29:05,340 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175
[2024-08-23 16:29:05,340 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:29:05,340 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:29:05,340 INFO  L85        PathProgramCache]: Analyzing trace with hash 1322400969, now seen corresponding path program 2 times
[2024-08-23 16:29:05,340 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:29:05,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343574947]
[2024-08-23 16:29:05,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:29:05,341 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:29:05,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-08-23 16:29:06,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 3060 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 2796 trivial. 0 not checked.
[2024-08-23 16:29:06,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-08-23 16:29:06,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343574947]
[2024-08-23 16:29:06,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343574947] provided 1 perfect and 0 imperfect interpolant sequences
[2024-08-23 16:29:06,469 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-08-23 16:29:06,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-08-23 16:29:06,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196979738]
[2024-08-23 16:29:06,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-08-23 16:29:06,469 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-08-23 16:29:06,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-08-23 16:29:06,470 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-08-23 16:29:06,470 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-08-23 16:29:06,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:06,470 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-08-23 16:29:06,470 INFO  L496      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)
[2024-08-23 16:29:06,470 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:06,471 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:29:06,471 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:12,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-08-23 16:29:12,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-08-23 16:29:12,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-08-23 16:29:12,504 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176
[2024-08-23 16:29:12,504 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-08-23 16:29:12,504 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-08-23 16:29:12,504 INFO  L85        PathProgramCache]: Analyzing trace with hash 89116107, now seen corresponding path program 1 times
[2024-08-23 16:29:12,504 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-08-23 16:29:12,504 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253975708]
[2024-08-23 16:29:12,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-08-23 16:29:12,505 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-08-23 16:29:12,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:29:12,664 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-08-23 16:29:12,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-08-23 16:29:12,968 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-08-23 16:29:12,968 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2024-08-23 16:29:12,969 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2024-08-23 16:29:12,969 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-08-23 16:29:12,969 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177
[2024-08-23 16:29:12,969 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1]
[2024-08-23 16:29:12,969 WARN  L234   ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-08-23 16:29:12,969 INFO  L522   ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances.
[2024-08-23 16:29:13,062 INFO  L144    ThreadInstanceAdder]: Constructed 46 joinOtherThreadTransitions.
[2024-08-23 16:29:13,066 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:29:13,066 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-08-23 16:29:13,066 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-08-23 16:29:13,067 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)
[2024-08-23 16:29:13,068 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
[2024-08-23 16:29:13,071 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-08-23 16:29:13,071 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-08-23 16:29:13,071 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@4ac0a56c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-08-23 16:29:13,071 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.