/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-ps-ci_file-84.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:42:39,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:42:39,117 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 12:42:39,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:42:39,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:42:39,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:42:39,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:42:39,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:42:39,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:42:39,156 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:42:39,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:42:39,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:42:39,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:42:39,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:42:39,159 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:42:39,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:42:39,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:42:39,160 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:42:39,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:42:39,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:42:39,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:42:39,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:42:39,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:42:39,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:42:39,162 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:42:39,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:42:39,163 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:42:39,163 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:42:39,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:42:39,163 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:42:39,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:42:39,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:42:39,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:42:39,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:42:39,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:42:39,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:42:39,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:42:39,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:42:39,169 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:42:39,169 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:42:39,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:42:39,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:42:39,170 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:42:39,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:42:39,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:42:39,170 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:42:39,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:42:39,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:42:39,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:42:39,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:42:39,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:42:39,410 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:42:39,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-84.i [2023-12-16 12:42:40,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:42:40,754 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:42:40,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-84.i [2023-12-16 12:42:40,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6408b55e/4e684ef838154dff8ab3861914aa59a0/FLAG3b4f921ed [2023-12-16 12:42:40,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6408b55e/4e684ef838154dff8ab3861914aa59a0 [2023-12-16 12:42:40,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:42:40,782 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:42:40,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:42:40,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:42:40,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:42:40,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:40" (1/1) ... [2023-12-16 12:42:40,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b0e301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:40, skipping insertion in model container [2023-12-16 12:42:40,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:42:40" (1/1) ... [2023-12-16 12:42:40,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:42:40,959 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-ps-ci_file-84.i[919,932] [2023-12-16 12:42:41,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:42:41,046 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:42:41,056 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-ps-ci_file-84.i[919,932] [2023-12-16 12:42:41,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:42:41,118 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:42:41,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41 WrapperNode [2023-12-16 12:42:41,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:42:41,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:42:41,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:42:41,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:42:41,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,162 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-12-16 12:42:41,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:42:41,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:42:41,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:42:41,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:42:41,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,178 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,190 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 12:42:41,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:42:41,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:42:41,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:42:41,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:42:41,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (1/1) ... [2023-12-16 12:42:41,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:42:41,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:42:41,265 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 12:42:41,287 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 12:42:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:42:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:42:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:42:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:42:41,409 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:42:41,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:42:42,476 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:42:42,544 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:42:42,544 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:42:42,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:42:42 BoogieIcfgContainer [2023-12-16 12:42:42,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:42:42,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:42:42,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:42:42,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:42:42,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:42:40" (1/3) ... [2023-12-16 12:42:42,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9f0de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:42:42, skipping insertion in model container [2023-12-16 12:42:42,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:42:41" (2/3) ... [2023-12-16 12:42:42,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9f0de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:42:42, skipping insertion in model container [2023-12-16 12:42:42,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:42:42" (3/3) ... [2023-12-16 12:42:42,554 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-84.i [2023-12-16 12:42:42,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:42:42,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:42:42,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:42:42,659 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;@6f1a7dbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:42:42,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:42:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 12:42:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-16 12:42:42,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:42:42,687 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:42,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:42:42,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:42:42,696 INFO L85 PathProgramCache]: Analyzing trace with hash 742464302, now seen corresponding path program 1 times [2023-12-16 12:42:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:42:42,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880429899] [2023-12-16 12:42:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:42:42,713 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 12:42:42,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:42:42,716 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 12:42:42,746 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 12:42:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:42:43,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:42:43,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:42:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked. [2023-12-16 12:42:43,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:42:43,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:42:43,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880429899] [2023-12-16 12:42:43,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880429899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:42:43,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:42:43,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:42:43,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276629802] [2023-12-16 12:42:43,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:42:43,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:42:43,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:42:43,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:42:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:42:43,163 INFO L87 Difference]: Start difference. First operand has 86 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-16 12:42:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:42:43,257 INFO L93 Difference]: Finished difference Result 169 states and 310 transitions. [2023-12-16 12:42:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:42:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 199 [2023-12-16 12:42:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:42:43,275 INFO L225 Difference]: With dead ends: 169 [2023-12-16 12:42:43,275 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 12:42:43,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 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 12:42:43,282 INFO L413 NwaCegarLoop]: 132 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, 132 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 12:42:43,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 12:42:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 12:42:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-16 12:42:43,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 50 states have (on average 1.42) internal successors, (71), 50 states have internal predecessors, (71), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 12:42:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 135 transitions. [2023-12-16 12:42:43,325 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 135 transitions. Word has length 199 [2023-12-16 12:42:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:42:43,326 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 135 transitions. [2023-12-16 12:42:43,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-16 12:42:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 135 transitions. [2023-12-16 12:42:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-16 12:42:43,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:42:43,331 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:43,351 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 12:42:43,545 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 12:42:43,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:42:43,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:42:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1694380174, now seen corresponding path program 1 times [2023-12-16 12:42:43,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:42:43,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019241649] [2023-12-16 12:42:43,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:42:43,548 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 12:42:43,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:42:43,549 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 12:42:43,551 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 12:42:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:42:43,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 12:42:43,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:42:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1068 proven. 135 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2023-12-16 12:42:44,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:42:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 6 proven. 87 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-12-16 12:42:46,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:42:46,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019241649] [2023-12-16 12:42:46,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019241649] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:42:46,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:42:46,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2023-12-16 12:42:46,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809633552] [2023-12-16 12:42:46,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:42:46,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 12:42:46,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:42:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 12:42:46,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 12:42:46,818 INFO L87 Difference]: Start difference. First operand 84 states and 135 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2023-12-16 12:42:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:42:47,930 INFO L93 Difference]: Finished difference Result 179 states and 279 transitions. [2023-12-16 12:42:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 12:42:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 199 [2023-12-16 12:42:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:42:47,953 INFO L225 Difference]: With dead ends: 179 [2023-12-16 12:42:47,954 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 12:42:47,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2023-12-16 12:42:47,956 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 198 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 12:42:47,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 210 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 12:42:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 12:42:47,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2023-12-16 12:42:47,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 12:42:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 140 transitions. [2023-12-16 12:42:47,972 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 140 transitions. Word has length 199 [2023-12-16 12:42:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:42:47,976 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-12-16 12:42:47,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 4 states have call successors, (61), 3 states have call predecessors, (61), 6 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2023-12-16 12:42:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 140 transitions. [2023-12-16 12:42:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-16 12:42:47,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:42:47,979 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:47,990 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 12:42:48,190 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 [2023-12-16 12:42:48,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:42:48,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:42:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash 606442416, now seen corresponding path program 1 times [2023-12-16 12:42:48,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:42:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691064902] [2023-12-16 12:42:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:42:48,192 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 12:42:48,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:42:48,193 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) [2023-12-16 12:42:48,204 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 [2023-12-16 12:42:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:42:48,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:42:48,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:42:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-12-16 12:42:48,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:42:48,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:42:48,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691064902] [2023-12-16 12:42:48,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691064902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:42:48,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:42:48,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:42:48,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677104898] [2023-12-16 12:42:48,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:42:48,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:42:48,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:42:48,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:42:48,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:42:48,465 INFO L87 Difference]: Start difference. First operand 92 states and 140 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 12:42:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:42:48,539 INFO L93 Difference]: Finished difference Result 180 states and 273 transitions. [2023-12-16 12:42:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:42:48,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 199 [2023-12-16 12:42:48,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:42:48,550 INFO L225 Difference]: With dead ends: 180 [2023-12-16 12:42:48,550 INFO L226 Difference]: Without dead ends: 89 [2023-12-16 12:42:48,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:42:48,552 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:42:48,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 117 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 12:42:48,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-16 12:42:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-16 12:42:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 12:42:48,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 130 transitions. [2023-12-16 12:42:48,565 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 130 transitions. Word has length 199 [2023-12-16 12:42:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:42:48,566 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 130 transitions. [2023-12-16 12:42:48,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 12:42:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 130 transitions. [2023-12-16 12:42:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:42:48,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:42:48,569 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:48,578 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 [2023-12-16 12:42:48,778 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 [2023-12-16 12:42:48,779 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:42:48,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:42:48,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1875800729, now seen corresponding path program 1 times [2023-12-16 12:42:48,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:42:48,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115853891] [2023-12-16 12:42:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:42:48,781 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 12:42:48,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:42:48,782 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 12:42:48,787 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 12:42:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:42:49,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 12:42:49,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:42:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1080 proven. 147 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2023-12-16 12:42:50,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:42:54,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:42:54,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115853891] [2023-12-16 12:42:54,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115853891] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:42:54,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1665309027] [2023-12-16 12:42:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:42:54,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:42:54,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:42:54,810 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) [2023-12-16 12:42:54,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 12:42:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:42:55,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 12:42:55,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:42:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1120 proven. 102 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-16 12:42:56,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:42:58,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1665309027] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:42:58,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:42:58,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 12 [2023-12-16 12:42:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277325460] [2023-12-16 12:42:58,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:42:58,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 12:42:58,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:42:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 12:42:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=208, Unknown=0, NotChecked=0, Total=342 [2023-12-16 12:42:58,879 INFO L87 Difference]: Start difference. First operand 89 states and 130 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (49), 5 states have call predecessors, (49), 7 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) [2023-12-16 12:42:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:42:59,663 INFO L93 Difference]: Finished difference Result 270 states and 386 transitions. [2023-12-16 12:42:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 12:42:59,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (49), 5 states have call predecessors, (49), 7 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) Word has length 200 [2023-12-16 12:42:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:42:59,669 INFO L225 Difference]: With dead ends: 270 [2023-12-16 12:42:59,669 INFO L226 Difference]: Without dead ends: 182 [2023-12-16 12:42:59,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=235, Invalid=365, Unknown=0, NotChecked=0, Total=600 [2023-12-16 12:42:59,671 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 44 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 12:42:59,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 492 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 12:42:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-16 12:42:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 172. [2023-12-16 12:42:59,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 98 states have internal predecessors, (115), 64 states have call successors, (64), 9 states have call predecessors, (64), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-16 12:42:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 243 transitions. [2023-12-16 12:42:59,695 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 243 transitions. Word has length 200 [2023-12-16 12:42:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:42:59,695 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 243 transitions. [2023-12-16 12:42:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (49), 5 states have call predecessors, (49), 7 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) [2023-12-16 12:42:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 243 transitions. [2023-12-16 12:42:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:42:59,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:42:59,698 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:59,711 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 [2023-12-16 12:42:59,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:43:00,108 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 [2023-12-16 12:43:00,109 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:43:00,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:43:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1408049317, now seen corresponding path program 1 times [2023-12-16 12:43:00,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:43:00,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938961028] [2023-12-16 12:43:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:43:00,110 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 12:43:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:43:00,112 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) [2023-12-16 12:43:00,127 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 [2023-12-16 12:43:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:43:00,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 12:43:00,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:43:36,614 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 12:43:36,614 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:43:37,656 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 [2023-12-16 12:43:37,674 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