/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c


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


This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m
[2023-09-07 07:19:13,690 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-09-07 07:19:13,724 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf
[2023-09-07 07:19:13,727 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-09-07 07:19:13,727 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-09-07 07:19:13,727 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-09-07 07:19:13,740 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-09-07 07:19:13,740 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-09-07 07:19:13,740 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-09-07 07:19:13,741 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-09-07 07:19:13,741 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-09-07 07:19:13,742 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-09-07 07:19:13,742 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-09-07 07:19:13,742 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-09-07 07:19:13,742 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-09-07 07:19:13,743 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-09-07 07:19:13,743 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-09-07 07:19:13,743 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-09-07 07:19:13,743 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-09-07 07:19:13,743 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-09-07 07:19:13,744 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-09-07 07:19:13,744 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-09-07 07:19:13,744 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-09-07 07:19:13,745 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-09-07 07:19:13,745 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-09-07 07:19:13,745 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-09-07 07:19:13,745 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-09-07 07:19:13,746 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-09-07 07:19:13,746 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2023-09-07 07:19:13,746 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-09-07 07:19:13,746 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-09-07 07:19:13,746 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-09-07 07:19:13,747 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-09-07 07:19:13,747 INFO  L153        SettingsManager]:  * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL
[2023-09-07 07:19:13,747 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-09-07 07:19:13,747 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-09-07 07:19:13,747 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-09-07 07:19:13,748 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-09-07 07:19:13,748 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2023-09-07 07:19:13,748 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-09-07 07:19:13,748 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS
[2023-09-07 07:19:13,748 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/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
[2023-09-07 07:19:13,884 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-09-07 07:19:13,897 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-09-07 07:19:13,898 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-09-07 07:19:13,899 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-09-07 07:19:13,899 INFO  L274        PluginConnector]: CDTParser initialized
[2023-09-07 07:19:13,900 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c
[2023-09-07 07:19:14,875 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-09-07 07:19:15,011 INFO  L384              CDTParser]: Found 1 translation units.
[2023-09-07 07:19:15,012 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c
[2023-09-07 07:19:15,017 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e3e3bd5/dffe321a3e19413d84404b367b24f7d5/FLAG3e42173ba
[2023-09-07 07:19:15,028 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e3e3bd5/dffe321a3e19413d84404b367b24f7d5
[2023-09-07 07:19:15,030 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-09-07 07:19:15,031 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-09-07 07:19:15,031 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-09-07 07:19:15,031 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-09-07 07:19:15,034 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-09-07 07:19:15,035 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,035 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb09a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15, skipping insertion in model container
[2023-09-07 07:19:15,035 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,055 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-09-07 07:19:15,193 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611]
[2023-09-07 07:19:15,205 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-09-07 07:19:15,211 INFO  L202         MainTranslator]: Completed pre-run
[2023-09-07 07:19:15,243 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611]
[2023-09-07 07:19:15,251 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-09-07 07:19:15,262 INFO  L206         MainTranslator]: Completed translation
[2023-09-07 07:19:15,263 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15 WrapperNode
[2023-09-07 07:19:15,263 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-09-07 07:19:15,264 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-09-07 07:19:15,264 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-09-07 07:19:15,264 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-09-07 07:19:15,269 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,298 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,342 INFO  L138                Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 204
[2023-09-07 07:19:15,342 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-09-07 07:19:15,342 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-09-07 07:19:15,343 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-09-07 07:19:15,343 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-09-07 07:19:15,349 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,349 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,361 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,362 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,366 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,369 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,370 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,371 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,383 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-09-07 07:19:15,384 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-09-07 07:19:15,384 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-09-07 07:19:15,385 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-09-07 07:19:15,385 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (1/1) ...
[2023-09-07 07:19:15,389 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-09-07 07:19:15,396 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:19:15,414 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-09-07 07:19:15,433 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2023-09-07 07:19:15,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2023-09-07 07:19:15,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2023-09-07 07:19:15,441 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2023-09-07 07:19:15,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2023-09-07 07:19:15,442 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-09-07 07:19:15,443 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-09-07 07:19:15,443 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-09-07 07:19:15,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-09-07 07:19:15,443 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-09-07 07:19:15,444 WARN  L210             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-09-07 07:19:15,517 INFO  L236             CfgBuilder]: Building ICFG
[2023-09-07 07:19:15,519 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-09-07 07:19:15,849 INFO  L277             CfgBuilder]: Performing block encoding
[2023-09-07 07:19:15,855 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-09-07 07:19:15,856 INFO  L302             CfgBuilder]: Removed 7 assume(true) statements.
[2023-09-07 07:19:15,857 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:19:15 BoogieIcfgContainer
[2023-09-07 07:19:15,857 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-09-07 07:19:15,858 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-09-07 07:19:15,858 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-09-07 07:19:15,860 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-09-07 07:19:15,861 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 07:19:15" (1/3) ...
[2023-09-07 07:19:15,861 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aed382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:19:15, skipping insertion in model container
[2023-09-07 07:19:15,861 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:19:15" (2/3) ...
[2023-09-07 07:19:15,861 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72aed382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:19:15, skipping insertion in model container
[2023-09-07 07:19:15,861 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:19:15" (3/3) ...
[2023-09-07 07:19:15,862 INFO  L112   eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c
[2023-09-07 07:19:15,867 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-09-07 07:19:15,873 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-09-07 07:19:15,873 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-09-07 07:19:15,873 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-09-07 07:19:15,928 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-09-07 07:19:15,983 INFO  L103   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-09-07 07:19:15,983 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2023-09-07 07:19:15,983 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:19:15,986 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2023-09-07 07:19:15,987 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2023-09-07 07:19:16,030 INFO  L166   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2023-09-07 07:19:16,035 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ========
[2023-09-07 07:19:16,039 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2e1fa312, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-09-07 07:19:16,039 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
Found a loop, use abstraction hammer
[2023-09-07 07:19:31,757 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-09-07 07:19:31,760 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-09-07 07:19:31,760 INFO  L85        PathProgramCache]: Analyzing trace with hash -754958311, now seen corresponding path program 1 times
[2023-09-07 07:19:31,766 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-07 07:19:31,766 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378063886]
[2023-09-07 07:19:31,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:19:31,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-07 07:19:31,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:19:32,116 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2023-09-07 07:19:32,116 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-07 07:19:32,117 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378063886]
[2023-09-07 07:19:32,117 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378063886] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-07 07:19:32,117 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-07 07:19:32,117 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-09-07 07:19:32,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098307176]
[2023-09-07 07:19:32,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-07 07:19:32,124 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-09-07 07:19:32,124 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-07 07:19:32,141 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-09-07 07:19:32,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-09-07 07:19:32,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:19:32,143 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-09-07 07:19:32,144 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-07 07:19:32,144 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
[2023-09-07 07:19:45,302 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:19:45,303 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-09-07 07:19:45,303 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-09-07 07:19:45,304 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-09-07 07:19:45,304 INFO  L85        PathProgramCache]: Analyzing trace with hash 390366125, now seen corresponding path program 1 times
[2023-09-07 07:19:45,304 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-07 07:19:45,304 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622573297]
[2023-09-07 07:19:45,304 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:19:45,304 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-07 07:19:45,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:19:45,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2023-09-07 07:19:45,709 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-07 07:19:45,709 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622573297]
[2023-09-07 07:19:45,709 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622573297] provided 0 perfect and 1 imperfect interpolant sequences
[2023-09-07 07:19:45,709 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538846031]
[2023-09-07 07:19:45,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:19:45,709 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:19:45,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:19:45,738 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-09-07 07:19:45,739 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-09-07 07:19:45,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:19:45,894 INFO  L262         TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-09-07 07:19:45,900 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-09-07 07:19:45,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2023-09-07 07:19:45,998 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-09-07 07:19:46,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2023-09-07 07:19:46,134 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [538846031] provided 1 perfect and 1 imperfect interpolant sequences
[2023-09-07 07:19:46,134 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2023-09-07 07:19:46,134 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 16
[2023-09-07 07:19:46,134 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994195709]
[2023-09-07 07:19:46,135 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-07 07:19:46,135 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-09-07 07:19:46,135 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-07 07:19:46,136 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-09-07 07:19:46,136 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240
[2023-09-07 07:19:46,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:19:46,138 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-09-07 07:19:46,138 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-07 07:19:46,138 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:19:46,138 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
[2023-09-07 07:20:00,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:00,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-09-07 07:20:00,831 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-09-07 07:20:01,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-09-07 07:20:01,029 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-09-07 07:20:01,030 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-09-07 07:20:01,030 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868150476, now seen corresponding path program 1 times
[2023-09-07 07:20:01,031 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-07 07:20:01,031 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570678758]
[2023-09-07 07:20:01,031 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:20:01,032 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-07 07:20:01,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:20:01,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2023-09-07 07:20:01,462 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-07 07:20:01,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570678758]
[2023-09-07 07:20:01,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570678758] provided 0 perfect and 1 imperfect interpolant sequences
[2023-09-07 07:20:01,463 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673274319]
[2023-09-07 07:20:01,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:20:01,463 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:20:01,463 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:20:01,479 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-09-07 07:20:01,480 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-09-07 07:20:01,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:20:01,619 INFO  L262         TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-09-07 07:20:01,631 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-09-07 07:20:01,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2023-09-07 07:20:01,806 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-09-07 07:20:02,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2023-09-07 07:20:02,009 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673274319] provided 0 perfect and 2 imperfect interpolant sequences
[2023-09-07 07:20:02,009 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-09-07 07:20:02,009 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26
[2023-09-07 07:20:02,010 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592895431]
[2023-09-07 07:20:02,010 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-09-07 07:20:02,010 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2023-09-07 07:20:02,010 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-07 07:20:02,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2023-09-07 07:20:02,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650
[2023-09-07 07:20:02,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:02,012 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-09-07 07:20:02,013 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 26 states, 26 states have (on average 11.307692307692308) internal successors, (294), 26 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-07 07:20:02,013 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:02,013 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2023-09-07 07:20:02,013 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
[2023-09-07 07:20:19,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:19,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-09-07 07:20:19,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-09-07 07:20:19,193 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-09-07 07:20:19,385 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:20:19,386 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-09-07 07:20:19,386 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-09-07 07:20:19,386 INFO  L85        PathProgramCache]: Analyzing trace with hash 1046120909, now seen corresponding path program 2 times
[2023-09-07 07:20:19,387 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-07 07:20:19,387 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423833960]
[2023-09-07 07:20:19,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:20:19,387 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-07 07:20:19,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:20:20,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-09-07 07:20:20,159 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-07 07:20:20,159 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423833960]
[2023-09-07 07:20:20,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423833960] provided 0 perfect and 1 imperfect interpolant sequences
[2023-09-07 07:20:20,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673030734]
[2023-09-07 07:20:20,160 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-09-07 07:20:20,160 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:20:20,161 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:20:20,178 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-09-07 07:20:20,208 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-09-07 07:20:20,339 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-09-07 07:20:20,340 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-09-07 07:20:20,342 INFO  L262         TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 16 conjunts are in the unsatisfiable core
[2023-09-07 07:20:20,345 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-09-07 07:20:20,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-09-07 07:20:20,622 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-09-07 07:20:20,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 93 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-09-07 07:20:20,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673030734] provided 0 perfect and 2 imperfect interpolant sequences
[2023-09-07 07:20:20,933 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-09-07 07:20:20,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 36
[2023-09-07 07:20:20,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239047279]
[2023-09-07 07:20:20,933 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-09-07 07:20:20,934 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2023-09-07 07:20:20,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-07 07:20:20,934 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2023-09-07 07:20:20,935 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260
[2023-09-07 07:20:20,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:20,935 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-09-07 07:20:20,935 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 36 states, 36 states have (on average 9.13888888888889) internal successors, (329), 36 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-07 07:20:20,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:20,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2023-09-07 07:20:20,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. 
[2023-09-07 07:20:20,936 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
Found a loop, use abstraction hammer
[2023-09-07 07:20:35,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-09-07 07:20:35,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-09-07 07:20:35,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-09-07 07:20:35,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2023-09-07 07:20:35,386 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-09-07 07:20:35,585 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:20:35,585 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-09-07 07:20:35,586 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-09-07 07:20:35,586 INFO  L85        PathProgramCache]: Analyzing trace with hash 322008596, now seen corresponding path program 3 times
[2023-09-07 07:20:35,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-07 07:20:35,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345539086]
[2023-09-07 07:20:35,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-07 07:20:35,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-07 07:20:35,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-07 07:20:36,394 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 11 proven. 59 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2023-09-07 07:20:36,395 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-07 07:20:36,395 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345539086]
[2023-09-07 07:20:36,395 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345539086] provided 0 perfect and 1 imperfect interpolant sequences
[2023-09-07 07:20:36,395 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933087566]
[2023-09-07 07:20:36,395 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-09-07 07:20:36,396 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-09-07 07:20:36,396 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-07 07:20:36,406 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-09-07 07:20:36,413 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-09-07 07:20:37,059 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2023-09-07 07:20:37,059 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-09-07 07:20:37,068 INFO  L262         TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 219 conjunts are in the unsatisfiable core
[2023-09-07 07:20:37,076 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-09-07 07:20:37,161 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-09-07 07:20:37,633 INFO  L322             Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2023-09-07 07:20:37,634 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21
[2023-09-07 07:20:38,494 INFO  L322             Elim1Store]: treesize reduction 36, result has 34.5 percent of original size
[2023-09-07 07:20:38,495 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33
[2023-09-07 07:20:39,816 INFO  L322             Elim1Store]: treesize reduction 12, result has 52.0 percent of original size
[2023-09-07 07:20:39,816 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25
[2023-09-07 07:20:41,361 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27
[2023-09-07 07:20:41,846 INFO  L322             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-09-07 07:20:41,846 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 46
[2023-09-07 07:20:42,077 INFO  L322             Elim1Store]: treesize reduction 35, result has 16.7 percent of original size
[2023-09-07 07:20:42,078 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 66
[2023-09-07 07:20:43,858 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:43,865 INFO  L322             Elim1Store]: treesize reduction 44, result has 2.2 percent of original size
[2023-09-07 07:20:43,865 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 5 case distinctions, treesize of input 85 treesize of output 104
[2023-09-07 07:20:44,444 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:44,464 INFO  L322             Elim1Store]: treesize reduction 95, result has 6.9 percent of original size
[2023-09-07 07:20:44,465 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 114 treesize of output 138
[2023-09-07 07:20:46,362 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:46,363 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:46,364 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:46,365 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:46,366 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-09-07 07:20:46,376 INFO  L322             Elim1Store]: treesize reduction 56, result has 1.8 percent of original size
[2023-09-07 07:20:46,376 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 13 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 168
[2023-09-07 07:20:49,540 INFO  L322             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-09-07 07:20:49,541 INFO  L351             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 9 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 83
[2023-09-07 07:20:49,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 67 proven. 42 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2023-09-07 07:20:49,789 INFO  L327         TraceCheckSpWp]: Computing backward predicates...