/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-05 23:06:19,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 23:06:19,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 23:06:19,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 23:06:19,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 23:06:19,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 23:06:19,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 23:06:19,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 23:06:19,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 23:06:19,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 23:06:19,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 23:06:19,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 23:06:19,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 23:06:19,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 23:06:19,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 23:06:19,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 23:06:19,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 23:06:19,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 23:06:19,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 23:06:19,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 23:06:19,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 23:06:19,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 23:06:19,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 23:06:19,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 23:06:19,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 23:06:19,588 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 23:06:19,589 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 23:06:19,589 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 23:06:19,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 23:06:19,589 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 23:06:19,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 23:06:19,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 23:06:19,590 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 23:06:19,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 23:06:19,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 23:06:19,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 23:06:19,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 23:06:19,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 23:06:19,592 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 23:06:19,592 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 23:06:19,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 23:06:19,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 23:06:19,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 23:06:19,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 23:06:19,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF [2024-11-05 23:06:19,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 23:06:19,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 23:06:19,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 23:06:19,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 23:06:19,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 23:06:19,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-4.i [2024-11-05 23:06:21,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 23:06:21,596 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 23:06:21,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-4.i [2024-11-05 23:06:21,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de75ec27f/aea9f77c6276446d83cdf231f19710a8/FLAG9f5b5c9c5 [2024-11-05 23:06:21,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de75ec27f/aea9f77c6276446d83cdf231f19710a8 [2024-11-05 23:06:21,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 23:06:21,961 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 23:06:21,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 23:06:21,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 23:06:21,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 23:06:21,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:06:21" (1/1) ... [2024-11-05 23:06:21,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8ec524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:21, skipping insertion in model container [2024-11-05 23:06:21,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:06:21" (1/1) ... [2024-11-05 23:06:22,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 23:06:22,160 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-4.i[915,928] [2024-11-05 23:06:22,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 23:06:22,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 23:06:22,278 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-4.i[915,928] [2024-11-05 23:06:22,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 23:06:22,334 INFO L204 MainTranslator]: Completed translation [2024-11-05 23:06:22,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22 WrapperNode [2024-11-05 23:06:22,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 23:06:22,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 23:06:22,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 23:06:22,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 23:06:22,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,396 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 203 [2024-11-05 23:06:22,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 23:06:22,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 23:06:22,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 23:06:22,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 23:06:22,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,444 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]. [2024-11-05 23:06:22,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 23:06:22,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 23:06:22,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 23:06:22,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 23:06:22,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (1/1) ... [2024-11-05 23:06:22,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 23:06:22,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 23:06:22,514 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) [2024-11-05 23:06:22,517 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 [2024-11-05 23:06:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 23:06:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 23:06:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 23:06:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 23:06:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 23:06:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 23:06:22,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 23:06:22,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 23:06:37,676 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-05 23:06:37,677 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 23:06:37,696 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 23:06:37,696 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 23:06:37,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:06:37 BoogieIcfgContainer [2024-11-05 23:06:37,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 23:06:37,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 23:06:37,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 23:06:37,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 23:06:37,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:06:21" (1/3) ... [2024-11-05 23:06:37,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5c97aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:06:37, skipping insertion in model container [2024-11-05 23:06:37,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:06:22" (2/3) ... [2024-11-05 23:06:37,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5c97aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:06:37, skipping insertion in model container [2024-11-05 23:06:37,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:06:37" (3/3) ... [2024-11-05 23:06:37,709 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-4.i [2024-11-05 23:06:37,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 23:06:37,722 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 23:06:37,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 23:06:37,782 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;@5a70e86f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 23:06:37,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 23:06:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 54 states have internal predecessors, (75), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-05 23:06:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-05 23:06:37,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 23:06:37,806 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 23:06:37,806 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 23:06:37,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 23:06:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash -967926216, now seen corresponding path program 1 times [2024-11-05 23:06:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 23:06:37,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427703362] [2024-11-05 23:06:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 23:06:37,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 23:06:37,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 23:06:37,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 23:06:37,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 23:06:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 23:06:39,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 23:06:39,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 23:06:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-05 23:06:44,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-05 23:06:44,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-05 23:06:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427703362] [2024-11-05 23:06:44,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427703362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-05 23:06:44,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-05 23:06:44,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-05 23:06:44,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186691347] [2024-11-05 23:06:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 23:06:44,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 23:06:44,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-05 23:06:44,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 23:06:44,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-05 23:06:44,187 INFO L87 Difference]: Start difference. First operand has 87 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 54 states have internal predecessors, (75), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-05 23:06:49,076 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 [] [2024-11-05 23:06:53,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:06:57,087 WARN L539 Checker$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 [] [2024-11-05 23:07:01,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:07:05,591 WARN L539 Checker$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 [] [2024-11-05 23:07:09,609 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 [] [2024-11-05 23:07:09,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 23:07:09,611 INFO L93 Difference]: Finished difference Result 248 states and 464 transitions. [2024-11-05 23:07:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 23:07:09,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195 [2024-11-05 23:07:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 23:07:09,731 INFO L225 Difference]: With dead ends: 248 [2024-11-05 23:07:09,731 INFO L226 Difference]: Without dead ends: 164 [2024-11-05 23:07:09,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 23:07:09,739 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 85 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 63 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-05 23:07:09,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 496 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 25.1s Time] [2024-11-05 23:07:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-05 23:07:09,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 139. [2024-11-05 23:07:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-05 23:07:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions. [2024-11-05 23:07:09,824 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 195 [2024-11-05 23:07:09,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 23:07:09,827 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 216 transitions. [2024-11-05 23:07:09,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-05 23:07:09,827 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions. [2024-11-05 23:07:09,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-05 23:07:09,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 23:07:09,832 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 23:07:09,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-05 23:07:10,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 23:07:10,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 23:07:10,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 23:07:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1055304833, now seen corresponding path program 1 times [2024-11-05 23:07:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 23:07:10,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247153578] [2024-11-05 23:07:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 23:07:10,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 23:07:10,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 23:07:10,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 23:07:10,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 23:07:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 23:07:11,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 23:07:11,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 23:07:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 916 proven. 51 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2024-11-05 23:07:15,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 23:07:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 123 proven. 54 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2024-11-05 23:07:20,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-05 23:07:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247153578] [2024-11-05 23:07:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247153578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 23:07:20,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 23:07:20,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-05 23:07:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16500443] [2024-11-05 23:07:20,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 23:07:20,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-05 23:07:20,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-05 23:07:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-05 23:07:20,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-05 23:07:20,878 INFO L87 Difference]: Start difference. First operand 139 states and 216 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 3 states have call successors, (41), 3 states have call predecessors, (41), 7 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-05 23:07:31,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:07:35,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:07:39,941 WARN L539 Checker$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 [] [2024-11-05 23:07:43,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:07:47,950 WARN L539 Checker$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 [] [2024-11-05 23:07:51,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 23:07:55,971 WARN L539 Checker$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 [] [2024-11-05 23:07:59,975 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 []