/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:35:26,731 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:35:26,784 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:35:26,792 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:35:26,792 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:35:26,813 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:35:26,814 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:35:26,814 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:35:26,815 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:35:26,815 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:35:26,816 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:35:26,816 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:35:26,816 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:35:26,817 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:35:26,817 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:35:26,817 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:35:26,818 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:35:26,818 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:35:26,818 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:35:26,819 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:35:26,819 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:35:26,821 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:35:26,821 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:35:26,821 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:35:26,822 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:35:26,822 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:35:26,822 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:35:26,822 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:35:26,823 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:35:26,823 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:35:26,823 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:35:26,824 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:35:26,824 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:35:26,826 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:35:26,826 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:35:26,827 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:35:26,827 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:35:26,827 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:35:26,827 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:35:26,828 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:35:26,828 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:35:26,829 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:35:26,829 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:35:26,829 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:35:26,830 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:27,066 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:35:27,096 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:35:27,102 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:35:27,103 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:35:27,103 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:35:27,105 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i
[2024-11-02 21:35:28,610 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:35:28,811 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:35:28,812 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i
[2024-11-02 21:35:28,826 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706823803/f9c93ae151bc4d9d9abccb4381b883dd/FLAG1092aa0b8
[2024-11-02 21:35:28,840 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706823803/f9c93ae151bc4d9d9abccb4381b883dd
[2024-11-02 21:35:28,842 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:35:28,843 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:35:28,844 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:35:28,844 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:35:28,849 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:35:28,850 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:35:28" (1/1) ...
[2024-11-02 21:35:28,851 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b406dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:28, skipping insertion in model container
[2024-11-02 21:35:28,851 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:35:28" (1/1) ...
[2024-11-02 21:35:28,890 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:35:29,063 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i[916,929]
[2024-11-02 21:35:29,137 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:35:29,155 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:35:29,166 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i[916,929]
[2024-11-02 21:35:29,227 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:35:29,247 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:35:29,249 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29 WrapperNode
[2024-11-02 21:35:29,249 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:35:29,252 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:35:29,252 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:35:29,252 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:35:29,259 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,272 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,299 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177
[2024-11-02 21:35:29,300 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:35:29,301 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:35:29,301 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:35:29,301 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:35:29,310 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,311 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,315 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,332 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-02 21:35:29,333 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,333 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,348 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,357 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,362 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,368 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,376 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:35:29,377 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:35:29,377 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:35:29,377 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:35:29,378 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (1/1) ...
[2024-11-02 21:35:29,386 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:35:29,397 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:35:29,412 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-02 21:35:29,419 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-02 21:35:29,444 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:35:29,444 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:35:29,444 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:35:29,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:35:29,445 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:35:29,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:35:29,543 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:35:29,545 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:35:43,593 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-02 21:35:43,594 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:35:43,612 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:35:43,613 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:35:43,613 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:35:43 BoogieIcfgContainer
[2024-11-02 21:35:43,613 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:35:43,616 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:35:43,616 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:35:43,619 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:35:43,619 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:35:28" (1/3) ...
[2024-11-02 21:35:43,620 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68415b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:35:43, skipping insertion in model container
[2024-11-02 21:35:43,620 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:35:29" (2/3) ...
[2024-11-02 21:35:43,621 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68415b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:35:43, skipping insertion in model container
[2024-11-02 21:35:43,622 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:35:43" (3/3) ...
[2024-11-02 21:35:43,623 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-37.i
[2024-11-02 21:35:43,639 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:35:43,640 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:35:43,697 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:35:43,702 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27a6f7bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:35:43,702 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:35:43,707 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 74 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-02 21:35:43,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-02 21:35:43,720 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:35:43,721 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:35:43,721 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:35:43,727 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:35:43,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 2079175466, now seen corresponding path program 1 times
[2024-11-02 21:35:43,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:35:43,736 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820398201]
[2024-11-02 21:35:43,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:35:43,738 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:43,740 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:35:43,742 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:35:43,744 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:35:44,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:35:44,505 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:35:44,513 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:35:44,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-02 21:35:44,556 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:35:45,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-02 21:35:45,637 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:35:45,637 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820398201]
[2024-11-02 21:35:45,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [820398201] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:35:45,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:35:45,638 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:35:45,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283344250]
[2024-11-02 21:35:45,640 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:35:45,646 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:35:45,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:35:45,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:35:45,672 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:35:45,674 INFO  L87              Difference]: Start difference. First operand  has 74 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20)
[2024-11-02 21:35:45,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:35:45,705 INFO  L93              Difference]: Finished difference Result 141 states and 244 transitions.
[2024-11-02 21:35:45,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:35:45,709 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 135
[2024-11-02 21:35:45,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:35:45,715 INFO  L225             Difference]: With dead ends: 141
[2024-11-02 21:35:45,715 INFO  L226             Difference]: Without dead ends: 70
[2024-11-02 21:35:45,718 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:35:45,721 INFO  L432           NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:35:45,722 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:35:45,735 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-02 21:35:45,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2024-11-02 21:35:45,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-02 21:35:45,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 108 transitions.
[2024-11-02 21:35:45,760 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 108 transitions. Word has length 135
[2024-11-02 21:35:45,761 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:35:45,761 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 108 transitions.
[2024-11-02 21:35:45,761 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20)
[2024-11-02 21:35:45,762 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions.
[2024-11-02 21:35:45,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-02 21:35:45,765 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:35:45,765 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:35:45,853 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:35:45,965 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:45,966 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:35:45,967 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:35:45,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -1935044122, now seen corresponding path program 1 times
[2024-11-02 21:35:45,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:35:45,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100210531]
[2024-11-02 21:35:45,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:35:45,968 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:45,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:35:45,972 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)
[2024-11-02 21:35:45,974 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:35:46,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:35:46,669 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:35:46,674 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:35:46,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-02 21:35:46,804 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:35:47,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-02 21:35:47,973 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:35:47,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100210531]
[2024-11-02 21:35:47,973 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [100210531] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:35:47,973 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:35:47,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:35:47,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198394438]
[2024-11-02 21:35:47,975 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:35:47,978 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:35:47,978 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:35:47,979 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:35:47,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:35:47,980 INFO  L87              Difference]: Start difference. First operand 70 states and 108 transitions. Second operand  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:35:52,846 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:35:56,855 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:35:56,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:35:56,867 INFO  L93              Difference]: Finished difference Result 201 states and 312 transitions.
[2024-11-02 21:35:56,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:35:56,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135
[2024-11-02 21:35:56,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:35:56,973 INFO  L225             Difference]: With dead ends: 201
[2024-11-02 21:35:56,973 INFO  L226             Difference]: Without dead ends: 134
[2024-11-02 21:35:56,974 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:35:56,975 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 93 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-02 21:35:56,976 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 206 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-02 21:35:56,977 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 134 states.
[2024-11-02 21:35:57,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132.
[2024-11-02 21:35:57,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 132 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-02 21:35:57,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 201 transitions.
[2024-11-02 21:35:57,009 INFO  L78                 Accepts]: Start accepts. Automaton has 132 states and 201 transitions. Word has length 135
[2024-11-02 21:35:57,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:35:57,012 INFO  L471      AbstractCegarLoop]: Abstraction has 132 states and 201 transitions.
[2024-11-02 21:35:57,013 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:35:57,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 132 states and 201 transitions.
[2024-11-02 21:35:57,015 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-02 21:35:57,017 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:35:57,018 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:35:57,097 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:35:57,218 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:57,219 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:35:57,219 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:35:57,219 INFO  L85        PathProgramCache]: Analyzing trace with hash 1868564433, now seen corresponding path program 1 times
[2024-11-02 21:35:57,220 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:35:57,220 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49775732]
[2024-11-02 21:35:57,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:35:57,220 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:35:57,220 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:35:57,222 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)
[2024-11-02 21:35:57,223 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:35:57,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:35:57,949 INFO  L255         TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-02 21:35:57,958 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:36:02,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 403 proven. 42 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2024-11-02 21:36:02,203 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:36:05,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-02 21:36:05,042 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:36:05,042 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49775732]
[2024-11-02 21:36:05,042 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [49775732] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:36:05,042 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:36:05,042 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12
[2024-11-02 21:36:05,042 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570851692]
[2024-11-02 21:36:05,043 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:36:05,043 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-02 21:36:05,043 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:36:05,044 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-02 21:36:05,044 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2024-11-02 21:36:05,045 INFO  L87              Difference]: Start difference. First operand 132 states and 201 transitions. Second operand  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)
[2024-11-02 21:36:13,163 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:36:17,168 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:36:21,179 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:36:25,198 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:36:29,204 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:36:29,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:36:29,209 INFO  L93              Difference]: Finished difference Result 216 states and 321 transitions.
[2024-11-02 21:36:29,317 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-02 21:36:29,318 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 136
[2024-11-02 21:36:29,319 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:36:29,321 INFO  L225             Difference]: With dead ends: 216
[2024-11-02 21:36:29,321 INFO  L226             Difference]: Without dead ends: 87
[2024-11-02 21:36:29,322 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420
[2024-11-02 21:36:29,323 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 104 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 76 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:36:29,324 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 206 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 186 Invalid, 5 Unknown, 0 Unchecked, 22.9s Time]
[2024-11-02 21:36:29,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-11-02 21:36:29,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76.
[2024-11-02 21:36:29,337 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-02 21:36:29,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions.
[2024-11-02 21:36:29,338 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 136
[2024-11-02 21:36:29,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:36:29,339 INFO  L471      AbstractCegarLoop]: Abstraction has 76 states and 103 transitions.
[2024-11-02 21:36:29,339 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)
[2024-11-02 21:36:29,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions.
[2024-11-02 21:36:29,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-11-02 21:36:29,341 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:36:29,342 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:36:29,412 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:36:29,542 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:36:29,543 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:36:29,544 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:36:29,544 INFO  L85        PathProgramCache]: Analyzing trace with hash 1908803233, now seen corresponding path program 1 times
[2024-11-02 21:36:29,544 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:36:29,544 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289995735]
[2024-11-02 21:36:29,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:36:29,544 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:36:29,545 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:36:29,546 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)
[2024-11-02 21:36:29,547 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:36:30,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:36:30,385 INFO  L255         TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 21:36:30,391 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:36:46,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 358 proven. 72 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2024-11-02 21:36:46,497 INFO  L311         TraceCheckSpWp]: Computing backward predicates...