/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_amount25_file-45.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 22:06:25,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 22:06:25,957 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 22:06:25,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 22:06:25,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 22:06:25,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 22:06:25,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 22:06:25,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 22:06:25,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 22:06:25,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 22:06:25,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 22:06:25,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 22:06:25,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 22:06:25,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 22:06:25,996 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 22:06:25,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 22:06:25,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 22:06:26,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 22:06:26,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 22:06:26,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 22:06:26,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 22:06:26,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 22:06:26,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 22:06:26,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 22:06:26,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 22:06:26,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 22:06:26,003 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 22:06:26,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 22:06:26,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 22:06:26,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 22:06:26,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 22:06:26,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 22:06:26,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 22:06:26,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 22:06:26,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:06:26,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 22:06:26,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 22:06:26,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 22:06:26,007 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 22:06:26,008 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 22:06:26,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 22:06:26,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 22:06:26,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 22:06:26,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 22:06:26,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:06:26,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 22:06:26,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 22:06:26,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 22:06:26,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 22:06:26,285 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 22:06:26,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-45.i [2024-11-02 22:06:27,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 22:06:27,866 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 22:06:27,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-45.i [2024-11-02 22:06:27,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea2b49c1/33af52531f03432b987dec25cdddf28b/FLAGc328ab003 [2024-11-02 22:06:28,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea2b49c1/33af52531f03432b987dec25cdddf28b [2024-11-02 22:06:28,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 22:06:28,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 22:06:28,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 22:06:28,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 22:06:28,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 22:06:28,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23620084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28, skipping insertion in model container [2024-11-02 22:06:28,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 22:06:28,488 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_amount25_file-45.i[915,928] [2024-11-02 22:06:28,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:06:28,554 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 22:06:28,564 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_amount25_file-45.i[915,928] [2024-11-02 22:06:28,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:06:28,603 INFO L204 MainTranslator]: Completed translation [2024-11-02 22:06:28,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28 WrapperNode [2024-11-02 22:06:28,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 22:06:28,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 22:06:28,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 22:06:28,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 22:06:28,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,646 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-02 22:06:28,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 22:06:28,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 22:06:28,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 22:06:28,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 22:06:28,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,677 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 22:06:28,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 22:06:28,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 22:06:28,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 22:06:28,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 22:06:28,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (1/1) ... [2024-11-02 22:06:28,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:06:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:06:28,735 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 22:06:28,746 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 22:06:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 22:06:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 22:06:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 22:06:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 22:06:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 22:06:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 22:06:28,863 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 22:06:28,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 22:06:30,125 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 22:06:30,125 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 22:06:30,138 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 22:06:30,138 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 22:06:30,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:06:30 BoogieIcfgContainer [2024-11-02 22:06:30,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 22:06:30,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 22:06:30,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 22:06:30,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 22:06:30,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:06:28" (1/3) ... [2024-11-02 22:06:30,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52497f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:06:30, skipping insertion in model container [2024-11-02 22:06:30,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:28" (2/3) ... [2024-11-02 22:06:30,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52497f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:06:30, skipping insertion in model container [2024-11-02 22:06:30,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:06:30" (3/3) ... [2024-11-02 22:06:30,146 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-45.i [2024-11-02 22:06:30,160 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 22:06:30,160 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 22:06:30,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 22:06:30,238 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;@31782a7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 22:06:30,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 22:06:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 22:06:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-02 22:06:30,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:06:30,251 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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 22:06:30,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:06:30,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:06:30,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2122602353, now seen corresponding path program 1 times [2024-11-02 22:06:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:06:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378346608] [2024-11-02 22:06:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:06:30,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:06:30,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:06:30,267 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 22:06:30,268 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 22:06:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:06:30,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-02 22:06:30,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:06:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 348 proven. 90 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-02 22:06:31,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:06:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 99 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2024-11-02 22:06:36,898 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:06:36,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378346608] [2024-11-02 22:06:36,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1378346608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 22:06:36,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 22:06:36,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-02 22:06:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290170646] [2024-11-02 22:06:36,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 22:06:36,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-02 22:06:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:06:36,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-02 22:06:36,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-02 22:06:36,930 INFO L87 Difference]: Start difference. First operand has 54 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 7 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-02 22:06:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:06:44,728 INFO L93 Difference]: Finished difference Result 180 states and 299 transitions. [2024-11-02 22:06:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-02 22:06:44,731 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 7 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 119 [2024-11-02 22:06:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:06:44,739 INFO L225 Difference]: With dead ends: 180 [2024-11-02 22:06:44,740 INFO L226 Difference]: Without dead ends: 129 [2024-11-02 22:06:44,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=589, Invalid=1573, Unknown=0, NotChecked=0, Total=2162 [2024-11-02 22:06:44,749 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 211 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:06:44,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 317 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-02 22:06:44,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-02 22:06:44,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 119. [2024-11-02 22:06:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 72 states have (on average 1.125) internal successors, (81), 72 states have internal predecessors, (81), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-02 22:06:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions. [2024-11-02 22:06:44,833 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 119 [2024-11-02 22:06:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:06:44,834 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions. [2024-11-02 22:06:44,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 7 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-02 22:06:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions. [2024-11-02 22:06:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-02 22:06:44,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:06:44,839 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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 22:06:44,868 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 22:06:45,040 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 22:06:45,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:06:45,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:06:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2120755311, now seen corresponding path program 1 times [2024-11-02 22:06:45,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:06:45,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411668213] [2024-11-02 22:06:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:06:45,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:06:45,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:06:45,045 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 22:06:45,046 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 22:06:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:06:45,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-02 22:06:45,861 INFO L278 TraceCheckSpWp]: Computing forward predicates...