/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_loopvsstraightlinecode_25-1loop_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:57:35,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:57:35,308 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 13:57:35,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:57:35,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:57:35,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:57:35,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:57:35,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:57:35,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:57:35,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:57:35,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:57:35,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:57:35,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:57:35,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:57:35,348 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:57:35,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:57:35,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:57:35,349 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:57:35,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:57:35,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:57:35,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:57:35,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:57:35,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:57:35,351 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:57:35,352 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:57:35,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:57:35,352 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:57:35,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:57:35,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:57:35,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:57:35,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:57:35,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:57:35,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:57:35,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:57:35,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:57:35,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:57:35,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:57:35,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:57:35,355 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:57:35,356 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:57:35,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:57:35,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:57:35,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:57:35,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:57:35,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:57:35,357 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:57:35,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:57:35,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:57:35,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:57:35,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:57:35,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:57:35,604 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:57:35,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-16 13:57:36,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:57:36,938 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:57:36,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-16 13:57:36,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46d5d38d1/ca3bd051f7fb4c51be01d85da7f1ac2f/FLAG90b38a95a [2023-12-16 13:57:36,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46d5d38d1/ca3bd051f7fb4c51be01d85da7f1ac2f [2023-12-16 13:57:36,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:57:36,959 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:57:36,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:57:36,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:57:36,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:57:36,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:57:36" (1/1) ... [2023-12-16 13:57:36,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cab43ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:36, skipping insertion in model container [2023-12-16 13:57:36,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:57:36" (1/1) ... [2023-12-16 13:57:36,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:57:37,158 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_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2023-12-16 13:57:37,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:57:37,202 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:57:37,213 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_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2023-12-16 13:57:37,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:57:37,252 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:57:37,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37 WrapperNode [2023-12-16 13:57:37,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:57:37,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:57:37,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:57:37,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:57:37,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,288 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-12-16 13:57:37,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:57:37,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:57:37,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:57:37,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:57:37,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,318 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 13:57:37,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:57:37,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:57:37,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:57:37,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:57:37,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (1/1) ... [2023-12-16 13:57:37,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:57:37,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:57:37,377 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 13:57:37,392 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 13:57:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:57:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:57:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:57:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:57:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:57:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:57:37,519 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:57:37,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:57:37,812 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:57:37,851 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:57:37,852 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:57:37,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:57:37 BoogieIcfgContainer [2023-12-16 13:57:37,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:57:37,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:57:37,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:57:37,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:57:37,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:57:36" (1/3) ... [2023-12-16 13:57:37,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccf85c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:57:37, skipping insertion in model container [2023-12-16 13:57:37,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:57:37" (2/3) ... [2023-12-16 13:57:37,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccf85c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:57:37, skipping insertion in model container [2023-12-16 13:57:37,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:57:37" (3/3) ... [2023-12-16 13:57:37,860 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-16 13:57:37,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:57:37,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:57:37,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:57:37,947 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;@73e9e657, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:57:37,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:57:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 13:57:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 13:57:37,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:57:37,962 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:37,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:57:37,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:57:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 196729352, now seen corresponding path program 1 times [2023-12-16 13:57:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:57:37,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841892592] [2023-12-16 13:57:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:57:37,982 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 13:57:37,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:57:37,984 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 13:57:37,987 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 13:57:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:57:38,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:57:38,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:57:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-16 13:57:38,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:57:38,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:57:38,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841892592] [2023-12-16 13:57:38,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841892592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:57:38,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:57:38,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:57:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841973803] [2023-12-16 13:57:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:57:38,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:57:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:57:38,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:57:38,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:57:38,208 INFO L87 Difference]: Start difference. First operand has 43 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 13:57:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:57:38,275 INFO L93 Difference]: Finished difference Result 85 states and 145 transitions. [2023-12-16 13:57:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:57:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-12-16 13:57:38,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:57:38,284 INFO L225 Difference]: With dead ends: 85 [2023-12-16 13:57:38,285 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 13:57:38,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 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 13:57:38,292 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 13:57:38,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 13:57:38,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 13:57:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-16 13:57:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 13:57:38,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 61 transitions. [2023-12-16 13:57:38,329 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 61 transitions. Word has length 88 [2023-12-16 13:57:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:57:38,329 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 61 transitions. [2023-12-16 13:57:38,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 13:57:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-12-16 13:57:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 13:57:38,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:57:38,332 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:38,344 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 13:57:38,541 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 13:57:38,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:57:38,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:57:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1480419316, now seen corresponding path program 1 times [2023-12-16 13:57:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:57:38,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217231894] [2023-12-16 13:57:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:57:38,545 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 13:57:38,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:57:38,546 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 13:57:38,548 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 13:57:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:57:38,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 13:57:38,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:57:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-16 13:57:39,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:57:39,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:57:39,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217231894] [2023-12-16 13:57:39,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217231894] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:57:39,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191914676] [2023-12-16 13:57:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:57:39,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 13:57:39,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 13:57:39,370 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 13:57:39,372 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 13:57:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:57:39,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 13:57:39,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:57:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-16 13:57:40,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:57:40,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [191914676] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:57:40,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:57:40,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2023-12-16 13:57:40,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113112730] [2023-12-16 13:57:40,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:57:40,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 13:57:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:57:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 13:57:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-16 13:57:40,110 INFO L87 Difference]: Start difference. First operand 41 states and 61 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 13:57:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:57:40,544 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2023-12-16 13:57:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 13:57:40,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 88 [2023-12-16 13:57:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:57:40,547 INFO L225 Difference]: With dead ends: 93 [2023-12-16 13:57:40,547 INFO L226 Difference]: Without dead ends: 53 [2023-12-16 13:57:40,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-12-16 13:57:40,549 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 13:57:40,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 119 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 13:57:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-16 13:57:40,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-12-16 13:57:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 13:57:40,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2023-12-16 13:57:40,559 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 88 [2023-12-16 13:57:40,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:57:40,559 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2023-12-16 13:57:40,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 13:57:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2023-12-16 13:57:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 13:57:40,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:57:40,561 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:40,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-16 13:57:40,772 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 13:57:40,968 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 13:57:40,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:57:40,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:57:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1106874786, now seen corresponding path program 1 times [2023-12-16 13:57:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:57:40,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367610817] [2023-12-16 13:57:40,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:57:40,974 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 13:57:40,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:57:40,976 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 13:57:41,000 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 13:57:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:57:41,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 13:57:41,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:58:23,226 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 13:58:23,227 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 13:58:24,244 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 13:58:24,247 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