/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_fillercodestructure_filler-pr-cn_file-9.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:24:54,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:24:54,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:24:54,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:24:54,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:24:54,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:24:54,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:24:54,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:24:54,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:24:54,097 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:24:54,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:24:54,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:24:54,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:24:54,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:24:54,099 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:24:54,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:24:54,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:24:54,099 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:24:54,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:24:54,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:24:54,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:24:54,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:24:54,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:24:54,102 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:24:54,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:24:54,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:24:54,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:24:54,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:24:54,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:24:54,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:24:54,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:24:54,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:24:54,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:24:54,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:24:54,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:24:54,106 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:24:54,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:24:54,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:24:54,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:24:54,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:24:54,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:24:54,296 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:24:54,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i [2023-12-16 12:24:55,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:24:55,590 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:24:55,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i [2023-12-16 12:24:55,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1630809/307387445d5440d38d12d631a2711433/FLAG1c95467be [2023-12-16 12:24:55,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1630809/307387445d5440d38d12d631a2711433 [2023-12-16 12:24:55,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:24:55,617 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:24:55,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:24:55,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:24:55,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:24:55,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344654c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55, skipping insertion in model container [2023-12-16 12:24:55,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:24:55,762 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_fillercodestructure_filler-pr-cn_file-9.i[918,931] [2023-12-16 12:24:55,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:24:55,818 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:24:55,827 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_fillercodestructure_filler-pr-cn_file-9.i[918,931] [2023-12-16 12:24:55,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:24:55,865 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:24:55,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55 WrapperNode [2023-12-16 12:24:55,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:24:55,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:24:55,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:24:55,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:24:55,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,900 INFO L138 Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218 [2023-12-16 12:24:55,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:24:55,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:24:55,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:24:55,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:24:55,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,928 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]. [2023-12-16 12:24:55,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:24:55,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:24:55,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:24:55,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:24:55,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (1/1) ... [2023-12-16 12:24:55,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:24:55,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:24:56,042 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) [2023-12-16 12:24:56,072 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 [2023-12-16 12:24:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:24:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:24:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:24:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:24:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:24:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:24:56,170 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:24:56,172 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:25:04,349 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:25:04,389 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:25:04,389 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:25:04,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:25:04 BoogieIcfgContainer [2023-12-16 12:25:04,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:25:04,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:25:04,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:25:04,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:25:04,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:24:55" (1/3) ... [2023-12-16 12:25:04,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38155cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:25:04, skipping insertion in model container [2023-12-16 12:25:04,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:24:55" (2/3) ... [2023-12-16 12:25:04,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38155cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:25:04, skipping insertion in model container [2023-12-16 12:25:04,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:25:04" (3/3) ... [2023-12-16 12:25:04,399 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-9.i [2023-12-16 12:25:04,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:25:04,412 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:25:04,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:25:04,460 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;@3dc9ae3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:25:04,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:25:04,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-16 12:25:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-16 12:25:04,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:25:04,484 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:25:04,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:25:04,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:25:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash -603077885, now seen corresponding path program 1 times [2023-12-16 12:25:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:25:04,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562933325] [2023-12-16 12:25:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:25:04,499 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 [2023-12-16 12:25:04,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:25:04,501 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) [2023-12-16 12:25:04,510 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 [2023-12-16 12:25:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:25:05,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:25:05,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:25:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 1172 proven. 0 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2023-12-16 12:25:05,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:25:05,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:25:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562933325] [2023-12-16 12:25:05,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562933325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:25:05,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:25:05,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:25:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666476985] [2023-12-16 12:25:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:25:05,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:25:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:25:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:25:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:25:05,205 INFO L87 Difference]: Start difference. First operand has 96 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 57 states have internal predecessors, (83), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-16 12:25:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:25:05,325 INFO L93 Difference]: Finished difference Result 189 states and 349 transitions. [2023-12-16 12:25:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:25:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 225 [2023-12-16 12:25:05,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:25:05,339 INFO L225 Difference]: With dead ends: 189 [2023-12-16 12:25:05,339 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 12:25:05,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:25:05,345 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:25:05,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 12:25:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 12:25:05,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 12:25:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-16 12:25:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 151 transitions. [2023-12-16 12:25:05,416 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 151 transitions. Word has length 225 [2023-12-16 12:25:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:25:05,416 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 151 transitions. [2023-12-16 12:25:05,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-16 12:25:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 151 transitions. [2023-12-16 12:25:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-16 12:25:05,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:25:05,421 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:25:05,439 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 [2023-12-16 12:25:05,624 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 [2023-12-16 12:25:05,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:25:05,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:25:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash 417240231, now seen corresponding path program 1 times [2023-12-16 12:25:05,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:25:05,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460553616] [2023-12-16 12:25:05,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:25:05,627 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 [2023-12-16 12:25:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:25:05,630 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) [2023-12-16 12:25:05,631 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 [2023-12-16 12:25:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:25:06,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 12:25:06,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:25:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 771 proven. 336 refuted. 0 times theorem prover too weak. 1557 trivial. 0 not checked. [2023-12-16 12:25:12,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:25:13,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:25:13,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460553616] [2023-12-16 12:25:13,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460553616] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:25:13,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [718355014] [2023-12-16 12:25:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:25:13,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:25:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:25:14,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:25:14,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 12:25:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:25:15,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 12:25:15,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:25:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 734 proven. 261 refuted. 0 times theorem prover too weak. 1669 trivial. 0 not checked. [2023-12-16 12:25:20,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:25:21,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [718355014] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:25:21,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:25:21,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 17 [2023-12-16 12:25:21,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499706853] [2023-12-16 12:25:21,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:25:21,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 12:25:21,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:25:21,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 12:25:21,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2023-12-16 12:25:21,240 INFO L87 Difference]: Start difference. First operand 94 states and 151 transitions. Second operand has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-16 12:25:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:25:24,991 INFO L93 Difference]: Finished difference Result 329 states and 516 transitions. [2023-12-16 12:25:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 12:25:24,996 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) Word has length 226 [2023-12-16 12:25:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:25:24,999 INFO L225 Difference]: With dead ends: 329 [2023-12-16 12:25:24,999 INFO L226 Difference]: Without dead ends: 236 [2023-12-16 12:25:25,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 12:25:25,001 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 318 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:25:25,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1043 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 12:25:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-16 12:25:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 205. [2023-12-16 12:25:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 124 states have internal predecessors, (169), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-16 12:25:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2023-12-16 12:25:25,072 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 317 transitions. Word has length 226 [2023-12-16 12:25:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:25:25,074 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 317 transitions. [2023-12-16 12:25:25,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.611111111111111) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (65), 5 states have call predecessors, (65), 7 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-16 12:25:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 317 transitions. [2023-12-16 12:25:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-16 12:25:25,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:25:25,080 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:25:25,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:25:25,308 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 [2023-12-16 12:25:25,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-16 12:25:25,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:25:25,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:25:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1438308585, now seen corresponding path program 1 times [2023-12-16 12:25:25,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:25:25,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954672240] [2023-12-16 12:25:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:25:25,507 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 [2023-12-16 12:25:25,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:25:25,509 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) [2023-12-16 12:25:25,510 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 [2023-12-16 12:25:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:25:26,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 12:25:26,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:26:02,459 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 [2023-12-16 12:26:02,459 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:26:03,494 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 (5)] Ended with exit code 0 [2023-12-16 12:26:03,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown