./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/25_stack_longer-2.yml/witness.yml --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version e94c40da
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-2.i ./goblint.2024-09-02_08-21-23.files/protection-local/25_stack_longer-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-e94c40d-m
[2024-09-24 12:02:54,609 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-24 12:02:54,684 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf
[2024-09-24 12:02:54,689 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-24 12:02:54,691 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-24 12:02:54,718 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-24 12:02:54,719 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-24 12:02:54,720 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-24 12:02:54,720 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-24 12:02:54,721 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-24 12:02:54,722 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-24 12:02:54,722 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-24 12:02:54,723 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-24 12:02:54,723 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-24 12:02:54,724 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-24 12:02:54,725 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-24 12:02:54,725 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-24 12:02:54,725 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-24 12:02:54,725 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-24 12:02:54,726 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-24 12:02:54,726 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-24 12:02:54,729 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-24 12:02:54,730 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-24 12:02:54,730 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-24 12:02:54,730 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-24 12:02:54,730 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-24 12:02:54,731 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-24 12:02:54,731 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-24 12:02:54,731 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-24 12:02:54,731 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-24 12:02:54,732 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-09-24 12:02:54,732 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-24 12:02:54,732 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-24 12:02:54,732 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-24 12:02:54,733 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-24 12:02:54,733 INFO  L153        SettingsManager]:  * DFS Order used in POR=LOOP_LOCKSTEP
[2024-09-24 12:02:54,733 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-24 12:02:54,733 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-24 12:02:54,734 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-09-24 12:02:54,734 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-09-24 12:02:54,734 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-09-24 12:02:54,736 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-09-24 12:02:54,980 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-24 12:02:55,006 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-24 12:02:55,009 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-24 12:02:55,011 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-24 12:02:55,011 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-24 12:02:55,012 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/25_stack_longer-2.yml/witness.yml
[2024-09-24 12:02:55,110 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-24 12:02:55,114 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-24 12:02:55,115 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack_longer-2.i
[2024-09-24 12:02:56,460 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-24 12:02:56,715 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-24 12:02:56,715 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-2.i
[2024-09-24 12:02:56,731 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a950743e1/deffd601e4b74619921cbc8825506e5e/FLAG5196c113f
[2024-09-24 12:02:57,022 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a950743e1/deffd601e4b74619921cbc8825506e5e
[2024-09-24 12:02:57,022 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-24 12:02:57,024 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-24 12:02:57,025 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-24 12:02:57,025 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-24 12:02:57,029 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-24 12:02:57,030 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:02:55" (1/2) ...
[2024-09-24 12:02:57,030 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60589f95 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 12:02:57, skipping insertion in model container
[2024-09-24 12:02:57,031 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:02:55" (1/2) ...
[2024-09-24 12:02:57,032 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6edb5437 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 12:02:57, skipping insertion in model container
[2024-09-24 12:02:57,032 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 12:02:57" (2/2) ...
[2024-09-24 12:02:57,032 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60589f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57, skipping insertion in model container
[2024-09-24 12:02:57,033 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 12:02:57" (2/2) ...
[2024-09-24 12:02:57,051 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-24 12:02:57,052 INFO  L1541             ArrayList]: Location invariant before [L738-L738] (m == 0 || m == 1) && (m2 == 0 || m2 == 1)
[2024-09-24 12:02:57,094 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-24 12:02:57,410 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-24 12:02:57,455 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Local
[2024-09-24 12:02:57,583 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-24 12:02:57,624 INFO  L204         MainTranslator]: Completed translation
[2024-09-24 12:02:57,625 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57 WrapperNode
[2024-09-24 12:02:57,625 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-24 12:02:57,627 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-24 12:02:57,627 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-24 12:02:57,627 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-24 12:02:57,633 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,645 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,666 INFO  L138                Inliner]: procedures = 178, calls = 38, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 185
[2024-09-24 12:02:57,666 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-24 12:02:57,667 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-24 12:02:57,667 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-24 12:02:57,667 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-24 12:02:57,676 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,676 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,679 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,679 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,685 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,688 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,690 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,691 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,694 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-24 12:02:57,695 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-24 12:02:57,695 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-24 12:02:57,695 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-24 12:02:57,696 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (1/1) ...
[2024-09-24 12:02:57,703 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-09-24 12:02:57,711 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:02:57,725 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-09-24 12:02:57,727 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2024-09-24 12:02:57,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-09-24 12:02:57,765 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-24 12:02:57,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-24 12:02:57,767 WARN  L211             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-09-24 12:02:57,886 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-24 12:02:57,887 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-24 12:02:58,153 INFO  L287             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-09-24 12:02:58,153 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-24 12:02:58,377 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-24 12:02:58,379 INFO  L318             CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-24 12:02:58,380 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 12:02:58 BoogieIcfgContainer
[2024-09-24 12:02:58,380 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-24 12:02:58,385 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-24 12:02:58,385 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-24 12:02:58,389 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-24 12:02:58,389 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:02:55" (1/4) ...
[2024-09-24 12:02:58,391 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3f00ed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 12:02:58, skipping insertion in model container
[2024-09-24 12:02:58,391 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 12:02:57" (2/4) ...
[2024-09-24 12:02:58,391 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3f00ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 12:02:58, skipping insertion in model container
[2024-09-24 12:02:58,392 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:02:57" (3/4) ...
[2024-09-24 12:02:58,392 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3f00ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 12:02:58, skipping insertion in model container
[2024-09-24 12:02:58,393 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 12:02:58" (4/4) ...
[2024-09-24 12:02:58,395 INFO  L112   eAbstractionObserver]: Analyzing ICFG 25_stack_longer-2.i
[2024-09-24 12:02:58,414 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-24 12:02:58,414 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-24 12:02:58,415 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-09-24 12:02:58,469 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-09-24 12:02:58,516 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:02:58,517 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-24 12:02:58,518 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:02:58,520 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-24 12:02:58,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-09-24 12:02:58,559 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-24 12:02:58,570 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ========
[2024-09-24 12:02:58,576 INFO  L336      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3f8d4a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:02:58,576 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-24 12:02:58,737 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:02:58,743 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:02:58,743 INFO  L85        PathProgramCache]: Analyzing trace with hash -991210795, now seen corresponding path program 1 times
[2024-09-24 12:02:58,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:02:58,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162878514]
[2024-09-24 12:02:58,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:02:58,754 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:02:58,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:02:59,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-24 12:02:59,227 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:02:59,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162878514]
[2024-09-24 12:02:59,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162878514] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:02:59,228 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:02:59,228 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-24 12:02:59,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147105971]
[2024-09-24 12:02:59,230 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:02:59,234 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-24 12:02:59,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:02:59,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-24 12:02:59,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-24 12:02:59,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:02:59,258 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:02:59,259 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:02:59,259 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:02:59,328 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:02:59,329 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-24 12:02:59,329 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:02:59,330 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:02:59,330 INFO  L85        PathProgramCache]: Analyzing trace with hash -1830595418, now seen corresponding path program 1 times
[2024-09-24 12:02:59,330 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:02:59,331 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375266360]
[2024-09-24 12:02:59,331 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:02:59,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:02:59,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:02:59,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:02:59,523 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:02:59,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375266360]
[2024-09-24 12:02:59,524 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375266360] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:02:59,524 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:02:59,525 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:02:59,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181631516]
[2024-09-24 12:02:59,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:02:59,527 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:02:59,527 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:02:59,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:02:59,529 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:02:59,529 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:02:59,530 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:02:59,531 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:02:59,531 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:02:59,531 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:02:59,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:02:59,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:02:59,629 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-24 12:02:59,630 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:02:59,630 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:02:59,630 INFO  L85        PathProgramCache]: Analyzing trace with hash 1772098688, now seen corresponding path program 1 times
[2024-09-24 12:02:59,630 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:02:59,631 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628795018]
[2024-09-24 12:02:59,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:02:59,631 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:02:59,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:02:59,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:02:59,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:02:59,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628795018]
[2024-09-24 12:02:59,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628795018] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:02:59,936 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:02:59,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-24 12:02:59,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872197679]
[2024-09-24 12:02:59,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:02:59,937 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:02:59,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:02:59,938 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:02:59,938 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:02:59,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:02:59,938 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:02:59,938 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:02:59,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:02:59,939 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:02:59,939 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,197 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining)
[2024-09-24 12:03:00,198 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-24 12:03:00,204 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-09-24 12:03:00,205 INFO  L312   ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2)
[2024-09-24 12:03:00,208 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:00,209 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-24 12:03:00,209 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:00,211 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-24 12:03:00,212 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2024-09-24 12:03:00,216 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-24 12:03:00,216 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-24 12:03:00,217 INFO  L336      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3f8d4a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:00,218 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-24 12:03:00,308 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:00,309 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:00,310 INFO  L85        PathProgramCache]: Analyzing trace with hash 1296827917, now seen corresponding path program 1 times
[2024-09-24 12:03:00,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:00,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278198714]
[2024-09-24 12:03:00,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:00,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:00,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:00,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:00,366 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:00,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278198714]
[2024-09-24 12:03:00,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278198714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:00,367 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:00,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-24 12:03:00,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724186915]
[2024-09-24 12:03:00,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:00,370 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-24 12:03:00,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:00,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-24 12:03:00,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-24 12:03:00,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,371 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:00,371 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:00,371 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,417 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,418 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-24 12:03:00,419 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:00,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:00,420 INFO  L85        PathProgramCache]: Analyzing trace with hash -900470498, now seen corresponding path program 1 times
[2024-09-24 12:03:00,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:00,420 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618903902]
[2024-09-24 12:03:00,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:00,420 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:00,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:00,505 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:00,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:00,506 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618903902]
[2024-09-24 12:03:00,507 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618903902] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:00,507 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:00,507 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:00,507 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745072428]
[2024-09-24 12:03:00,507 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:00,508 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:00,508 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:00,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:00,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:00,510 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,510 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:00,510 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:00,510 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,511 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,584 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-24 12:03:00,584 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:00,585 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:00,585 INFO  L85        PathProgramCache]: Analyzing trace with hash -2115159666, now seen corresponding path program 1 times
[2024-09-24 12:03:00,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:00,585 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056257067]
[2024-09-24 12:03:00,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:00,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:00,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:00,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:00,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:00,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056257067]
[2024-09-24 12:03:00,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056257067] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:00,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:00,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:00,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925870927]
[2024-09-24 12:03:00,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:00,809 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:00,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:00,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:00,810 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:00,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,811 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:00,811 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:00,811 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,811 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,811 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:00,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:00,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:00,872 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-09-24 12:03:00,872 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:00,872 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:00,873 INFO  L85        PathProgramCache]: Analyzing trace with hash 1870385106, now seen corresponding path program 1 times
[2024-09-24 12:03:00,873 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:00,873 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593592758]
[2024-09-24 12:03:00,873 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:00,874 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:00,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-24 12:03:00,896 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-24 12:03:00,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-24 12:03:00,939 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-24 12:03:00,940 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-24 12:03:00,940 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-09-24 12:03:00,941 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-24 12:03:00,943 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-24 12:03:00,944 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2)
[2024-09-24 12:03:00,946 WARN  L239   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-24 12:03:00,946 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-09-24 12:03:00,993 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-09-24 12:03:00,998 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:00,998 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-24 12:03:00,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:01,000 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-24 12:03:01,002 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process
[2024-09-24 12:03:01,005 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-24 12:03:01,005 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-09-24 12:03:01,006 INFO  L336      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3f8d4a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:01,006 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-24 12:03:01,262 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:01,263 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:01,263 INFO  L85        PathProgramCache]: Analyzing trace with hash -1665053319, now seen corresponding path program 1 times
[2024-09-24 12:03:01,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:01,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134368060]
[2024-09-24 12:03:01,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:01,264 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:01,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:01,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-09-24 12:03:01,384 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:01,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134368060]
[2024-09-24 12:03:01,387 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134368060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:01,387 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:01,387 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-24 12:03:01,388 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123272483]
[2024-09-24 12:03:01,388 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:01,388 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-24 12:03:01,388 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:01,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-24 12:03:01,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-24 12:03:01,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,390 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:01,390 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:01,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:01,473 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-09-24 12:03:01,473 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:01,473 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:01,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 625218806, now seen corresponding path program 1 times
[2024-09-24 12:03:01,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:01,474 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677604565]
[2024-09-24 12:03:01,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:01,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:01,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:01,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-24 12:03:01,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:01,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677604565]
[2024-09-24 12:03:01,619 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677604565] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:01,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:01,619 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:01,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31813460]
[2024-09-24 12:03:01,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:01,620 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:01,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:01,621 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:01,621 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:01,621 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,621 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:01,621 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:01,621 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:01,621 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:01,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:01,744 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-09-24 12:03:01,744 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:01,744 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:01,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -566746076, now seen corresponding path program 1 times
[2024-09-24 12:03:01,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:01,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720393679]
[2024-09-24 12:03:01,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:01,745 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:01,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:01,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:01,899 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:01,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720393679]
[2024-09-24 12:03:01,899 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720393679] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:01,899 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:01,899 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:01,900 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885459617]
[2024-09-24 12:03:01,900 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:01,900 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-24 12:03:01,900 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:01,901 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-24 12:03:01,901 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-24 12:03:01,901 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,901 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:01,901 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:01,901 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:01,901 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:01,901 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:01,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:01,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:01,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:01,964 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-09-24 12:03:01,964 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:01,964 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:01,964 INFO  L85        PathProgramCache]: Analyzing trace with hash -2007309732, now seen corresponding path program 1 times
[2024-09-24 12:03:01,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:01,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664374574]
[2024-09-24 12:03:01,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:01,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:01,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:02,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-24 12:03:02,197 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:02,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664374574]
[2024-09-24 12:03:02,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664374574] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:02,197 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:02,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:02,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209897430]
[2024-09-24 12:03:02,197 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:02,198 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:02,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:02,198 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:02,198 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:02,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:02,199 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:02,199 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:02,199 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:02,199 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,199 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,199 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:02,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:02,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,362 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-09-24 12:03:02,362 INFO  L399      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:02,362 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:02,362 INFO  L85        PathProgramCache]: Analyzing trace with hash 1957428244, now seen corresponding path program 1 times
[2024-09-24 12:03:02,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:02,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884669282]
[2024-09-24 12:03:02,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:02,363 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:02,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:02,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:02,463 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:02,463 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884669282]
[2024-09-24 12:03:02,463 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884669282] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:02,463 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365227965]
[2024-09-24 12:03:02,464 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:02,464 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:02,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:02,466 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:02,468 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-24 12:03:02,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:02,626 INFO  L262         TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:02,630 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:02,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:02,713 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:03:02,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:02,784 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365227965] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:03:02,785 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:03:02,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-09-24 12:03:02,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732357666]
[2024-09-24 12:03:02,785 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:03:02,786 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-24 12:03:02,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:02,787 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-24 12:03:02,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-24 12:03:02,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:02,787 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:02,787 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:02,788 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:02,788 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,788 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,788 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,788 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:02,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:02,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:02,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:02,911 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-24 12:03:03,090 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:03,091 INFO  L399      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:03,091 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:03,091 INFO  L85        PathProgramCache]: Analyzing trace with hash 1267739581, now seen corresponding path program 1 times
[2024-09-24 12:03:03,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:03,092 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690658334]
[2024-09-24 12:03:03,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:03,092 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:03,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:03,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:03,309 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:03,309 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690658334]
[2024-09-24 12:03:03,309 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690658334] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:03,309 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132666221]
[2024-09-24 12:03:03,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:03,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:03,310 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:03,312 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:03,314 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-24 12:03:03,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:03,454 INFO  L262         TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:03,457 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:03,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:03,533 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:03:03,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:03,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [132666221] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:03:03,624 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:03:03,624 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12
[2024-09-24 12:03:03,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653788851]
[2024-09-24 12:03:03,625 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:03:03,625 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-09-24 12:03:03,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:03,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-09-24 12:03:03,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2024-09-24 12:03:03,626 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:03,626 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:03,627 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:03,627 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:03,628 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:03,628 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:03,628 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:03,628 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:03,628 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:04,006 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:04,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:04,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:04,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:04,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:04,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-09-24 12:03:04,028 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-24 12:03:04,208 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-09-24 12:03:04,209 INFO  L399      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-09-24 12:03:04,209 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:04,209 INFO  L85        PathProgramCache]: Analyzing trace with hash 1274676468, now seen corresponding path program 1 times
[2024-09-24 12:03:04,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:04,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683570925]
[2024-09-24 12:03:04,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:04,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:04,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-24 12:03:04,247 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-09-24 12:03:04,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-09-24 12:03:04,301 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-09-24 12:03:04,302 INFO  L326         BasicCegarLoop]: Counterexample is feasible
[2024-09-24 12:03:04,302 INFO  L785   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2024-09-24 12:03:04,302 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-09-24 12:03:04,303 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2024-09-24 12:03:04,304 INFO  L312   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3)
[2024-09-24 12:03:04,304 WARN  L239   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-09-24 12:03:04,304 INFO  L484   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-09-24 12:03:04,346 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-09-24 12:03:04,350 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:04,351 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-09-24 12:03:04,351 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:04,352 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-09-24 12:03:04,354 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process
[2024-09-24 12:03:04,357 INFO  L157   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-09-24 12:03:04,357 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ========
[2024-09-24 12:03:04,358 INFO  L336      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3f8d4a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-24 12:03:04,358 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-24 12:03:04,777 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:04,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:04,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -737300730, now seen corresponding path program 1 times
[2024-09-24 12:03:04,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:04,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294273463]
[2024-09-24 12:03:04,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:04,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:04,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:05,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked.
[2024-09-24 12:03:05,006 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:05,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294273463]
[2024-09-24 12:03:05,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294273463] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:05,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:05,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-24 12:03:05,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454654639]
[2024-09-24 12:03:05,006 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:05,007 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-24 12:03:05,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:05,007 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-24 12:03:05,007 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-24 12:03:05,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:05,007 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:05,008 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:05,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:05,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:05,128 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-09-24 12:03:05,129 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:05,129 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:05,129 INFO  L85        PathProgramCache]: Analyzing trace with hash 1453984085, now seen corresponding path program 1 times
[2024-09-24 12:03:05,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:05,129 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087368897]
[2024-09-24 12:03:05,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:05,129 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:05,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:05,413 INFO  L134       CoverageAnalysis]: Checked inductivity of 273 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked.
[2024-09-24 12:03:05,414 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:05,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087368897]
[2024-09-24 12:03:05,414 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087368897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:05,414 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:05,414 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:05,414 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79374516]
[2024-09-24 12:03:05,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:05,414 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:05,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:05,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:05,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:05,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:05,415 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:05,415 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:05,415 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:05,416 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:05,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:05,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:05,586 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-09-24 12:03:05,586 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:05,586 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:05,586 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811210750, now seen corresponding path program 1 times
[2024-09-24 12:03:05,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:05,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088775712]
[2024-09-24 12:03:05,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:05,587 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:05,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:05,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-09-24 12:03:05,920 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:05,921 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088775712]
[2024-09-24 12:03:05,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088775712] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:05,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:05,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:05,921 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946199822]
[2024-09-24 12:03:05,921 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:05,921 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-24 12:03:05,921 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:05,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-24 12:03:05,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-24 12:03:05,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:05,922 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:05,922 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:05,922 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:05,922 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:05,922 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:06,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:06,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:06,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:06,187 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-09-24 12:03:06,187 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:06,187 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:06,187 INFO  L85        PathProgramCache]: Analyzing trace with hash 1171577763, now seen corresponding path program 1 times
[2024-09-24 12:03:06,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:06,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548923564]
[2024-09-24 12:03:06,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:06,188 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:06,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:06,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 280 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked.
[2024-09-24 12:03:06,421 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:06,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548923564]
[2024-09-24 12:03:06,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548923564] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:06,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133340096]
[2024-09-24 12:03:06,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:06,422 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:06,422 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:06,424 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:06,425 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-09-24 12:03:06,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:06,732 INFO  L262         TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:06,741 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:06,792 INFO  L134       CoverageAnalysis]: Checked inductivity of 280 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked.
[2024-09-24 12:03:06,792 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:03:06,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 280 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked.
[2024-09-24 12:03:06,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133340096] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:03:06,847 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:03:06,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-09-24 12:03:06,847 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906743240]
[2024-09-24 12:03:06,847 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:03:06,848 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-24 12:03:06,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:06,848 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-24 12:03:06,848 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-24 12:03:06,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:06,848 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:06,849 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:06,849 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:06,849 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:06,849 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:06,849 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:07,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:07,092 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-09-24 12:03:07,272 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-09-24 12:03:07,272 INFO  L399      AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:07,272 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:07,273 INFO  L85        PathProgramCache]: Analyzing trace with hash -363183414, now seen corresponding path program 1 times
[2024-09-24 12:03:07,273 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:07,273 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567791222]
[2024-09-24 12:03:07,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:07,273 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:07,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:07,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 263 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-09-24 12:03:07,507 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:07,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567791222]
[2024-09-24 12:03:07,507 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567791222] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:07,507 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:07,508 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:07,508 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160932951]
[2024-09-24 12:03:07,508 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:07,508 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-24 12:03:07,509 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:07,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-24 12:03:07,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-24 12:03:07,510 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:07,510 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:07,510 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:07,510 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,510 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,510 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,510 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:07,511 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:07,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:07,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:07,669 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-09-24 12:03:07,669 INFO  L399      AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:07,669 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:07,670 INFO  L85        PathProgramCache]: Analyzing trace with hash -117456644, now seen corresponding path program 2 times
[2024-09-24 12:03:07,670 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:07,670 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717280051]
[2024-09-24 12:03:07,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:07,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:07,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:07,802 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-09-24 12:03:07,802 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:07,802 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717280051]
[2024-09-24 12:03:07,803 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717280051] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:07,803 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:07,803 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-24 12:03:07,803 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884775130]
[2024-09-24 12:03:07,803 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:07,803 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-24 12:03:07,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:07,804 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-24 12:03:07,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-24 12:03:07,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:07,804 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:07,804 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:07,804 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:07,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:07,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:07,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:07,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:07,990 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-09-24 12:03:07,991 INFO  L399      AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:07,991 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:07,991 INFO  L85        PathProgramCache]: Analyzing trace with hash 887336406, now seen corresponding path program 1 times
[2024-09-24 12:03:07,991 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:07,991 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089864037]
[2024-09-24 12:03:07,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:07,992 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:08,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:08,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 253 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2024-09-24 12:03:08,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:08,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089864037]
[2024-09-24 12:03:08,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089864037] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:08,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:08,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-24 12:03:08,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169856320]
[2024-09-24 12:03:08,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:08,213 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-24 12:03:08,213 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:08,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-24 12:03:08,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-24 12:03:08,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:08,214 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:08,214 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,214 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:08,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:08,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,435 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-09-24 12:03:08,435 INFO  L399      AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:08,436 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:08,436 INFO  L85        PathProgramCache]: Analyzing trace with hash 220913460, now seen corresponding path program 2 times
[2024-09-24 12:03:08,436 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:08,436 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343475489]
[2024-09-24 12:03:08,436 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:08,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:08,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:08,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 90 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-09-24 12:03:08,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:08,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343475489]
[2024-09-24 12:03:08,646 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343475489] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:08,646 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:08,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-09-24 12:03:08,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489718716]
[2024-09-24 12:03:08,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:08,647 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-24 12:03:08,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:08,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-24 12:03:08,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-09-24 12:03:08,648 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:08,648 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:08,648 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:08,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,648 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,649 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:08,649 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,649 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,649 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,649 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:08,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:08,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:08,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:08,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:08,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:08,936 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-09-24 12:03:08,936 INFO  L399      AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:08,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:08,937 INFO  L85        PathProgramCache]: Analyzing trace with hash 1855393393, now seen corresponding path program 1 times
[2024-09-24 12:03:08,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:08,937 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891358714]
[2024-09-24 12:03:08,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:08,937 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:08,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:09,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 232 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked.
[2024-09-24 12:03:09,174 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:09,174 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891358714]
[2024-09-24 12:03:09,174 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891358714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:09,174 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:09,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-09-24 12:03:09,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39477400]
[2024-09-24 12:03:09,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:09,175 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-24 12:03:09,175 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:09,176 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-24 12:03:09,176 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-09-24 12:03:09,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:09,176 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:09,176 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:09,176 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:09,177 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:09,177 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:09,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:09,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:09,431 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-09-24 12:03:09,431 INFO  L399      AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:09,431 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:09,432 INFO  L85        PathProgramCache]: Analyzing trace with hash -1700761394, now seen corresponding path program 2 times
[2024-09-24 12:03:09,432 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:09,432 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101937753]
[2024-09-24 12:03:09,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:09,432 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:09,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:09,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 451 backedges. 237 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked.
[2024-09-24 12:03:09,763 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:09,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101937753]
[2024-09-24 12:03:09,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101937753] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:09,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123849340]
[2024-09-24 12:03:09,763 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-24 12:03:09,763 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:09,763 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:09,766 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:09,767 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-09-24 12:03:10,048 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-09-24 12:03:10,048 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-24 12:03:10,051 INFO  L262         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:10,057 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:10,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 451 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked.
[2024-09-24 12:03:10,084 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-24 12:03:10,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [123849340] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:10,085 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-24 12:03:10,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-09-24 12:03:10,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35861081]
[2024-09-24 12:03:10,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:10,086 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-24 12:03:10,086 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:10,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-24 12:03:10,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-09-24 12:03:10,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:10,087 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:10,087 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:10,087 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:10,088 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:10,088 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:10,088 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:10,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-09-24 12:03:10,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:10,772 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-09-24 12:03:10,954 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:10,954 INFO  L399      AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:10,955 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:10,955 INFO  L85        PathProgramCache]: Analyzing trace with hash 1860750964, now seen corresponding path program 1 times
[2024-09-24 12:03:10,955 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:10,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959226432]
[2024-09-24 12:03:10,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:10,955 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:11,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:11,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 421 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked.
[2024-09-24 12:03:11,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:11,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959226432]
[2024-09-24 12:03:11,278 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959226432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:11,278 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:11,278 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-09-24 12:03:11,278 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084918954]
[2024-09-24 12:03:11,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:11,279 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-24 12:03:11,279 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:11,279 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-24 12:03:11,279 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-09-24 12:03:11,279 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:11,280 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:11,280 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:11,280 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2024-09-24 12:03:11,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:11,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:11,621 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:11,621 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-09-24 12:03:11,621 INFO  L399      AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:11,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:11,621 INFO  L85        PathProgramCache]: Analyzing trace with hash -1301675808, now seen corresponding path program 1 times
[2024-09-24 12:03:11,622 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:11,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86812773]
[2024-09-24 12:03:11,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:11,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:11,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:13,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 1072 backedges. 1010 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:13,384 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:13,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86812773]
[2024-09-24 12:03:13,384 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86812773] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:13,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912066348]
[2024-09-24 12:03:13,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:13,384 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:13,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:13,386 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:13,388 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-09-24 12:03:13,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:13,858 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:13,864 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:13,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 1072 backedges. 191 proven. 3 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked.
[2024-09-24 12:03:13,945 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:03:14,059 INFO  L134       CoverageAnalysis]: Checked inductivity of 1072 backedges. 191 proven. 3 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked.
[2024-09-24 12:03:14,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [912066348] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:03:14,059 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:03:14,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 5, 5] total 36
[2024-09-24 12:03:14,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220631776]
[2024-09-24 12:03:14,060 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:03:14,060 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-09-24 12:03:14,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:14,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-09-24 12:03:14,063 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=879, Unknown=0, NotChecked=0, Total=1332
[2024-09-24 12:03:14,063 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:14,063 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:14,063 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 37 states, 37 states have (on average 9.324324324324325) internal successors, (345), 36 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:14,064 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:15,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:15,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2024-09-24 12:03:15,915 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-09-24 12:03:16,095 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-09-24 12:03:16,096 INFO  L399      AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:16,096 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:16,096 INFO  L85        PathProgramCache]: Analyzing trace with hash -1518503131, now seen corresponding path program 1 times
[2024-09-24 12:03:16,096 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:16,096 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318018044]
[2024-09-24 12:03:16,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:16,096 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:16,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:17,816 INFO  L134       CoverageAnalysis]: Checked inductivity of 1098 backedges. 1039 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:17,817 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:17,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318018044]
[2024-09-24 12:03:17,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318018044] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:17,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657152473]
[2024-09-24 12:03:17,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:17,817 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:17,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:17,820 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:17,821 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-09-24 12:03:18,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:18,380 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:18,387 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:18,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 1098 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked.
[2024-09-24 12:03:18,491 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-24 12:03:18,491 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [657152473] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:18,491 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-24 12:03:18,492 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [29] total 32
[2024-09-24 12:03:18,492 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981619742]
[2024-09-24 12:03:18,492 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:18,492 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-24 12:03:18,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:18,493 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-24 12:03:18,493 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=665, Unknown=0, NotChecked=0, Total=1056
[2024-09-24 12:03:18,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:18,494 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:18,494 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:18,494 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:18,495 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:18,495 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2024-09-24 12:03:18,495 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:19,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. 
[2024-09-24 12:03:19,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:19,779 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-09-24 12:03:19,957 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2024-09-24 12:03:19,957 INFO  L399      AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:19,958 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:19,958 INFO  L85        PathProgramCache]: Analyzing trace with hash -2076759325, now seen corresponding path program 1 times
[2024-09-24 12:03:19,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:19,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678894015]
[2024-09-24 12:03:19,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:19,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:20,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:21,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 1278 backedges. 1228 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-24 12:03:21,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:21,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678894015]
[2024-09-24 12:03:21,314 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678894015] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:03:21,314 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502864212]
[2024-09-24 12:03:21,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:21,314 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:03:21,314 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:03:21,316 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:03:21,318 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-09-24 12:03:21,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:21,952 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-09-24 12:03:21,960 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:03:22,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 1278 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked.
[2024-09-24 12:03:22,093 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-24 12:03:22,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [502864212] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:22,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-24 12:03:22,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [27] total 30
[2024-09-24 12:03:22,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220145705]
[2024-09-24 12:03:22,094 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:22,094 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-09-24 12:03:22,094 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:22,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-09-24 12:03:22,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=592, Unknown=0, NotChecked=0, Total=930
[2024-09-24 12:03:22,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:22,096 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:22,096 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:22,096 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:22,096 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,097 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,098 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,098 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. 
[2024-09-24 12:03:22,098 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:22,098 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:22,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:22,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:22,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:22,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:03:22,920 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-09-24 12:03:23,100 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-09-24 12:03:23,101 INFO  L399      AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:03:23,101 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:03:23,101 INFO  L85        PathProgramCache]: Analyzing trace with hash -1010851467, now seen corresponding path program 1 times
[2024-09-24 12:03:23,101 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:03:23,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341844695]
[2024-09-24 12:03:23,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:03:23,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:03:23,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:03:23,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-09-24 12:03:23,899 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:03:23,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341844695]
[2024-09-24 12:03:23,899 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341844695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-24 12:03:23,899 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-24 12:03:23,899 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-24 12:03:23,899 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307163052]
[2024-09-24 12:03:23,899 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-24 12:03:23,900 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-24 12:03:23,900 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:03:23,901 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-24 12:03:23,901 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-24 12:03:23,901 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:03:23,901 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:03:23,901 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:23,902 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:03:23,903 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:03:23,903 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. 
[2024-09-24 12:03:23,903 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:03:23,903 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:03:23,903 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:04:57,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:04:57,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:04:57,177 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-09-24 12:04:57,177 INFO  L399      AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:04:57,178 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:04:57,178 INFO  L85        PathProgramCache]: Analyzing trace with hash 212815512, now seen corresponding path program 1 times
[2024-09-24 12:04:57,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:04:57,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133989119]
[2024-09-24 12:04:57,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:04:57,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:04:57,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:04:59,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 2167 backedges. 281 proven. 1876 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-24 12:04:59,542 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:04:59,542 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133989119]
[2024-09-24 12:04:59,542 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133989119] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:04:59,542 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188728214]
[2024-09-24 12:04:59,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:04:59,542 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:04:59,542 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:04:59,543 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:04:59,545 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-09-24 12:05:00,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:05:00,200 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-09-24 12:05:00,210 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:05:00,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 2167 backedges. 281 proven. 1876 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-24 12:05:00,612 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:05:02,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 2167 backedges. 281 proven. 1876 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-24 12:05:02,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [188728214] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:05:02,328 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:05:02,328 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66
[2024-09-24 12:05:02,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798200200]
[2024-09-24 12:05:02,328 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:05:02,330 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 67 states
[2024-09-24 12:05:02,330 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:05:02,332 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants.
[2024-09-24 12:05:02,334 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422
[2024-09-24 12:05:02,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:05:02,335 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:05:02,335 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 67 states, 67 states have (on average 13.26865671641791) internal successors, (889), 66 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:05:02,335 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:05:02,335 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:05:02,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. 
[2024-09-24 12:05:02,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:05:02,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:05:02,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:05:02,337 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:10:08,658 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:08,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. 
[2024-09-24 12:10:08,678 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-09-24 12:10:08,860 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:10:08,860 INFO  L399      AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] ===
[2024-09-24 12:10:08,860 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-24 12:10:08,861 INFO  L85        PathProgramCache]: Analyzing trace with hash -1001012068, now seen corresponding path program 2 times
[2024-09-24 12:10:08,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-24 12:10:08,861 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476782153]
[2024-09-24 12:10:08,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-24 12:10:08,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-24 12:10:09,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-24 12:10:18,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 9817 backedges. 605 proven. 9202 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-24 12:10:18,891 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-24 12:10:18,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476782153]
[2024-09-24 12:10:18,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476782153] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-24 12:10:18,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678893341]
[2024-09-24 12:10:18,891 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-24 12:10:18,891 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-24 12:10:18,892 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3
[2024-09-24 12:10:18,893 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-24 12:10:18,894 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-09-24 12:10:20,051 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-24 12:10:20,051 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-24 12:10:20,074 INFO  L262         TraceCheckSpWp]: Trace formula consists of 4791 conjuncts, 69 conjuncts are in the unsatisfiable core
[2024-09-24 12:10:20,090 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-24 12:10:20,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 9817 backedges. 155 proven. 9658 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-24 12:10:20,963 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-24 12:10:26,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 9817 backedges. 155 proven. 9658 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-24 12:10:26,350 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [678893341] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-24 12:10:26,350 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-24 12:10:26,351 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 138
[2024-09-24 12:10:26,351 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057668064]
[2024-09-24 12:10:26,351 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-24 12:10:26,353 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 139 states
[2024-09-24 12:10:26,353 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-24 12:10:26,357 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants.
[2024-09-24 12:10:26,361 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182
[2024-09-24 12:10:26,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-24 12:10:26,361 INFO  L474      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-09-24 12:10:26,362 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 139 states, 139 states have (on average 13.43884892086331) internal successors, (1868), 138 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-09-24 12:10:26,362 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. 
[2024-09-24 12:10:26,363 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2024-09-24 12:10:26,363 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2024-09-24 12:10:26,363 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-09-24 12:10:26,363 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. 
[2024-09-24 12:10:26,363 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Killed by 15