/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 01:14:57,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 01:14:57,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 01:14:57,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 01:14:57,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 01:14:57,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 01:14:57,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 01:14:57,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 01:14:57,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 01:14:57,116 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 01:14:57,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 01:14:57,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 01:14:57,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 01:14:57,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 01:14:57,117 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 01:14:57,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 01:14:57,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 01:14:57,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 01:14:57,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 01:14:57,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 01:14:57,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 01:14:57,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 01:14:57,119 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 01:14:57,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 01:14:57,120 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 01:14:57,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 01:14:57,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 01:14:57,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 01:14:57,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:14:57,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 01:14:57,121 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 01:14:57,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 01:14:57,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 01:14:57,122 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 01:14:57,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 01:14:57,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 01:14:57,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 01:14:57,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 01:14:57,275 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 01:14:57,275 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 01:14:57,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-4.i [2023-12-23 01:14:58,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 01:14:58,398 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 01:14:58,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-4.i [2023-12-23 01:14:58,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4342053/9c227019a967455b841c41dbd047a4c5/FLAG2a46e17f9 [2023-12-23 01:14:58,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4342053/9c227019a967455b841c41dbd047a4c5 [2023-12-23 01:14:58,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 01:14:58,420 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 01:14:58,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 01:14:58,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 01:14:58,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 01:14:58,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d63d62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58, skipping insertion in model container [2023-12-23 01:14:58,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 01:14:58,550 WARN L239 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_fillercode_fillercodesize_ps-cn-10_file-4.i[914,927] [2023-12-23 01:14:58,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:14:58,611 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 01:14:58,619 WARN L239 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_fillercode_fillercodesize_ps-cn-10_file-4.i[914,927] [2023-12-23 01:14:58,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:14:58,652 INFO L206 MainTranslator]: Completed translation [2023-12-23 01:14:58,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58 WrapperNode [2023-12-23 01:14:58,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 01:14:58,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 01:14:58,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 01:14:58,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 01:14:58,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,686 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-12-23 01:14:58,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 01:14:58,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 01:14:58,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 01:14:58,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 01:14:58,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,718 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]. [2023-12-23 01:14:58,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 01:14:58,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 01:14:58,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 01:14:58,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 01:14:58,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (1/1) ... [2023-12-23 01:14:58,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:14:58,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 01:14:58,757 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) [2023-12-23 01:14:58,789 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 [2023-12-23 01:14:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 01:14:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 01:14:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 01:14:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 01:14:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 01:14:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 01:14:58,853 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 01:14:58,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 01:14:59,549 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 01:14:59,592 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 01:14:59,592 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 01:14:59,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:14:59 BoogieIcfgContainer [2023-12-23 01:14:59,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 01:14:59,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 01:14:59,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 01:14:59,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 01:14:59,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:14:58" (1/3) ... [2023-12-23 01:14:59,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3359af9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:14:59, skipping insertion in model container [2023-12-23 01:14:59,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:14:58" (2/3) ... [2023-12-23 01:14:59,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3359af9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:14:59, skipping insertion in model container [2023-12-23 01:14:59,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:14:59" (3/3) ... [2023-12-23 01:14:59,598 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-4.i [2023-12-23 01:14:59,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 01:14:59,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 01:14:59,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 01:14:59,654 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@45be925b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 01:14:59,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 01:14:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 01:14:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-23 01:14:59,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:14:59,668 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:14:59,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:14:59,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:14:59,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1856197234, now seen corresponding path program 1 times [2023-12-23 01:14:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:14:59,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546648207] [2023-12-23 01:14:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:14:59,682 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 [2023-12-23 01:14:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:14:59,684 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) [2023-12-23 01:14:59,760 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 [2023-12-23 01:14:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:14:59,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 01:14:59,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 850 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2023-12-23 01:15:00,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:15:00,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:15:00,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546648207] [2023-12-23 01:15:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546648207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:15:00,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:15:00,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 01:15:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490205885] [2023-12-23 01:15:00,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:15:00,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 01:15:00,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:15:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 01:15:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 01:15:00,040 INFO L87 Difference]: Start difference. First operand has 75 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 01:15:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:15:00,293 INFO L93 Difference]: Finished difference Result 147 states and 266 transitions. [2023-12-23 01:15:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 01:15:00,307 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 182 [2023-12-23 01:15:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:15:00,312 INFO L225 Difference]: With dead ends: 147 [2023-12-23 01:15:00,312 INFO L226 Difference]: Without dead ends: 73 [2023-12-23 01:15:00,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 01:15:00,317 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 01:15:00,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 01:15:00,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-23 01:15:00,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-12-23 01:15:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 41 states have internal predecessors, (53), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 01:15:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 113 transitions. [2023-12-23 01:15:00,346 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 113 transitions. Word has length 182 [2023-12-23 01:15:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:15:00,347 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 113 transitions. [2023-12-23 01:15:00,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 01:15:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 113 transitions. [2023-12-23 01:15:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-23 01:15:00,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:15:00,352 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:15:00,361 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:00,552 WARN L477 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 [2023-12-23 01:15:00,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:15:00,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:15:00,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1529732019, now seen corresponding path program 1 times [2023-12-23 01:15:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:15:00,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767659] [2023-12-23 01:15:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:00,555 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 [2023-12-23 01:15:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:15:00,557 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) [2023-12-23 01:15:00,557 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 [2023-12-23 01:15:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:00,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 01:15:00,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 279 proven. 159 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2023-12-23 01:15:01,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 01:15:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 9 proven. 162 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-12-23 01:15:01,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:15:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767659] [2023-12-23 01:15:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767659] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 01:15:01,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 01:15:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-23 01:15:01,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650729292] [2023-12-23 01:15:01,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 01:15:01,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 01:15:01,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:15:01,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 01:15:01,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-23 01:15:01,988 INFO L87 Difference]: Start difference. First operand 73 states and 113 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (58), 3 states have call predecessors, (58), 7 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-23 01:15:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:15:03,194 INFO L93 Difference]: Finished difference Result 170 states and 249 transitions. [2023-12-23 01:15:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 01:15:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (58), 3 states have call predecessors, (58), 7 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 183 [2023-12-23 01:15:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:15:03,196 INFO L225 Difference]: With dead ends: 170 [2023-12-23 01:15:03,197 INFO L226 Difference]: Without dead ends: 98 [2023-12-23 01:15:03,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-23 01:15:03,198 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 65 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-23 01:15:03,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 227 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-23 01:15:03,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-23 01:15:03,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2023-12-23 01:15:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 51 states have internal predecessors, (59), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 01:15:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 119 transitions. [2023-12-23 01:15:03,209 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 119 transitions. Word has length 183 [2023-12-23 01:15:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:15:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 119 transitions. [2023-12-23 01:15:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (58), 3 states have call predecessors, (58), 7 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-23 01:15:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 119 transitions. [2023-12-23 01:15:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-23 01:15:03,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:15:03,212 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:15:03,218 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:03,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2023-12-23 01:15:03,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:15:03,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:15:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1182987610, now seen corresponding path program 1 times [2023-12-23 01:15:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:15:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075637715] [2023-12-23 01:15:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:03,420 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 [2023-12-23 01:15:03,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:15:03,422 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2023-12-23 01:15:03,430 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 (4)] Waiting until timeout for monitored process [2023-12-23 01:15:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:03,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 01:15:03,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 01:15:03,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:15:03,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:15:03,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075637715] [2023-12-23 01:15:03,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075637715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:15:03,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:15:03,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 01:15:03,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335377116] [2023-12-23 01:15:03,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:15:03,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 01:15:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:15:03,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 01:15:03,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 01:15:03,841 INFO L87 Difference]: Start difference. First operand 85 states and 119 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:15:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:15:04,605 INFO L93 Difference]: Finished difference Result 251 states and 350 transitions. [2023-12-23 01:15:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 01:15:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 184 [2023-12-23 01:15:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:15:04,608 INFO L225 Difference]: With dead ends: 251 [2023-12-23 01:15:04,608 INFO L226 Difference]: Without dead ends: 167 [2023-12-23 01:15:04,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-23 01:15:04,609 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 137 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-23 01:15:04,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 281 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-23 01:15:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-23 01:15:04,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 160. [2023-12-23 01:15:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 93 states have (on average 1.118279569892473) internal successors, (104), 93 states have internal predecessors, (104), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 01:15:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2023-12-23 01:15:04,627 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 184 [2023-12-23 01:15:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:15:04,628 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2023-12-23 01:15:04,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:15:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2023-12-23 01:15:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-23 01:15:04,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:15:04,630 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:15:04,638 INFO L540 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 (4)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:04,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2023-12-23 01:15:04,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:15:04,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:15:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash 373640984, now seen corresponding path program 1 times [2023-12-23 01:15:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:15:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061381569] [2023-12-23 01:15:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:04,839 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 [2023-12-23 01:15:04,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:15:04,840 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2023-12-23 01:15:04,845 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 (5)] Waiting until timeout for monitored process [2023-12-23 01:15:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:05,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 01:15:05,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 717 proven. 63 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2023-12-23 01:15:05,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 01:15:06,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:15:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061381569] [2023-12-23 01:15:06,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061381569] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 01:15:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1929775367] [2023-12-23 01:15:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:06,169 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 01:15:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 01:15:06,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 01:15:06,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 01:15:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:06,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 01:15:06,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 818 proven. 117 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-12-23 01:15:07,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 01:15:08,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1929775367] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 01:15:08,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 01:15:08,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-23 01:15:08,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370692807] [2023-12-23 01:15:08,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 01:15:08,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-23 01:15:08,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:15:08,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-23 01:15:08,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-23 01:15:08,188 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (60), 5 states have call predecessors, (60), 8 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) [2023-12-23 01:15:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:15:13,138 INFO L93 Difference]: Finished difference Result 439 states and 593 transitions. [2023-12-23 01:15:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 01:15:13,140 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (60), 5 states have call predecessors, (60), 8 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) Word has length 184 [2023-12-23 01:15:13,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:15:13,142 INFO L225 Difference]: With dead ends: 439 [2023-12-23 01:15:13,142 INFO L226 Difference]: Without dead ends: 280 [2023-12-23 01:15:13,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-23 01:15:13,144 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 350 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-23 01:15:13,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 482 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-23 01:15:13,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-23 01:15:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2023-12-23 01:15:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.0974025974025974) internal successors, (169), 154 states have internal predecessors, (169), 90 states have call successors, (90), 15 states have call predecessors, (90), 15 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-23 01:15:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 349 transitions. [2023-12-23 01:15:13,175 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 349 transitions. Word has length 184 [2023-12-23 01:15:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:15:13,176 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 349 transitions. [2023-12-23 01:15:13,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (60), 5 states have call predecessors, (60), 8 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) [2023-12-23 01:15:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 349 transitions. [2023-12-23 01:15:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-23 01:15:13,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:15:13,177 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:15:13,188 INFO L540 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 (5)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:13,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:13,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 01:15:13,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:15:13,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:15:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash 631806422, now seen corresponding path program 1 times [2023-12-23 01:15:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:15:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441255078] [2023-12-23 01:15:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:13,590 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 [2023-12-23 01:15:13,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:15:13,591 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-23 01:15:13,592 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 (7)] Waiting until timeout for monitored process [2023-12-23 01:15:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:13,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 01:15:13,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:15:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 01:15:14,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:15:14,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:15:14,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441255078] [2023-12-23 01:15:14,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441255078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:15:14,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:15:14,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 01:15:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742995584] [2023-12-23 01:15:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:15:14,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 01:15:14,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:15:14,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 01:15:14,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 01:15:14,263 INFO L87 Difference]: Start difference. First operand 260 states and 349 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:15:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:15:15,098 INFO L93 Difference]: Finished difference Result 433 states and 578 transitions. [2023-12-23 01:15:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 01:15:15,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 184 [2023-12-23 01:15:15,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:15:15,113 INFO L225 Difference]: With dead ends: 433 [2023-12-23 01:15:15,113 INFO L226 Difference]: Without dead ends: 174 [2023-12-23 01:15:15,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 01:15:15,114 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 54 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 01:15:15,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 321 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 01:15:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-23 01:15:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 159. [2023-12-23 01:15:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 88 states have (on average 1.0568181818181819) internal successors, (93), 88 states have internal predecessors, (93), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 01:15:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 213 transitions. [2023-12-23 01:15:15,138 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 213 transitions. Word has length 184 [2023-12-23 01:15:15,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:15:15,138 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 213 transitions. [2023-12-23 01:15:15,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:15:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 213 transitions. [2023-12-23 01:15:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-23 01:15:15,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:15:15,140 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:15:15,146 INFO L540 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 01:15:15,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-23 01:15:15,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:15:15,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:15:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -885153356, now seen corresponding path program 1 times [2023-12-23 01:15:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:15:15,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434191347] [2023-12-23 01:15:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:15:15,350 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 [2023-12-23 01:15:15,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:15:15,351 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-23 01:15:15,353 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 (8)] Waiting until timeout for monitored process [2023-12-23 01:15:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:15:15,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 01:15:15,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 01:29:35,668 WARN L340 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 01:29:35,668 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 01:29:35,994 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 01:29:36,001 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 (8)] Ended with exit code 0 [2023-12-23 01:29:36,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-23 01:29:36,198 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 186 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-64-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-23 01:29:36,203 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 01:29:36,205 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 01:29:36,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:29:36 BoogieIcfgContainer [2023-12-23 01:29:36,206 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 01:29:36,207 INFO L158 Benchmark]: Toolchain (without parser) took 877786.21ms. Allocated memory was 352.3MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 299.4MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-23 01:29:36,207 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 215.0MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 01:29:36,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.71ms. Allocated memory is still 352.3MB. Free memory was 299.0MB in the beginning and 283.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-23 01:29:36,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.67ms. Allocated memory is still 352.3MB. Free memory was 283.9MB in the beginning and 281.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 01:29:36,207 INFO L158 Benchmark]: Boogie Preprocessor took 42.72ms. Allocated memory is still 352.3MB. Free memory was 281.2MB in the beginning and 278.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 01:29:36,208 INFO L158 Benchmark]: RCFGBuilder took 858.59ms. Allocated memory is still 352.3MB. Free memory was 278.1MB in the beginning and 253.3MB in the end (delta: 24.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-23 01:29:36,208 INFO L158 Benchmark]: TraceAbstraction took 876612.36ms. Allocated memory was 352.3MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 252.5MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-23 01:29:36,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 215.0MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.71ms. Allocated memory is still 352.3MB. Free memory was 299.0MB in the beginning and 283.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.67ms. Allocated memory is still 352.3MB. Free memory was 283.9MB in the beginning and 281.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.72ms. Allocated memory is still 352.3MB. Free memory was 281.2MB in the beginning and 278.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 858.59ms. Allocated memory is still 352.3MB. Free memory was 278.1MB in the beginning and 253.3MB in the end (delta: 24.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 876612.36ms. Allocated memory was 352.3MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 252.5MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 186 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-64-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 876.6s, OverallIterations: 6, TraceHistogramMax: 30, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 1421 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 839 mSDsCounter, 404 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1389 IncrementalHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 404 mSolverCounterUnsat, 582 mSDtfsCounter, 1389 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1347 GetRequests, 1275 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=4, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 55 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1101 NumberOfCodeBlocks, 1101 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1277 ConstructedInterpolants, 1 QuantifiedInterpolants, 7167 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1847 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 11679/12180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown