/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:34:42,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:34:42,579 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 11:34:42,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:34:42,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:34:42,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:34:42,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:34:42,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:34:42,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:34:42,615 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:34:42,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:34:42,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:34:42,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:34:42,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:34:42,616 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:34:42,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:34:42,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:34:42,617 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:34:42,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:34:42,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:34:42,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:34:42,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:34:42,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:34:42,618 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:34:42,621 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:34:42,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:34:42,621 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:34:42,621 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:34:42,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:34:42,622 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:34:42,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:34:42,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:34:42,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:34:42,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:34:42,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:34:42,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:34:42,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:34:42,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:34:42,623 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:34:42,623 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:34:42,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:34:42,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:34:42,624 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:34:42,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:34:42,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:34:42,624 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:34:42,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:34:42,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:34:42,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:34:42,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:34:42,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:34:42,825 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:34:42,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i [2023-12-16 11:34:43,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:34:44,053 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:34:44,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i [2023-12-16 11:34:44,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/870157cdc/81570df166d4435aa278c0d8139ab52c/FLAGcbc583132 [2023-12-16 11:34:44,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/870157cdc/81570df166d4435aa278c0d8139ab52c [2023-12-16 11:34:44,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:34:44,085 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:34:44,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:34:44,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:34:44,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:34:44,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2193d165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44, skipping insertion in model container [2023-12-16 11:34:44,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,128 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:34:44,250 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i[915,928] [2023-12-16 11:34:44,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:34:44,338 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:34:44,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i[915,928] [2023-12-16 11:34:44,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:34:44,413 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:34:44,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44 WrapperNode [2023-12-16 11:34:44,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:34:44,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:34:44,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:34:44,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:34:44,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,461 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 263 [2023-12-16 11:34:44,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:34:44,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:34:44,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:34:44,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:34:44,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,490 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 11:34:44,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:34:44,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:34:44,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:34:44,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:34:44,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (1/1) ... [2023-12-16 11:34:44,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:34:44,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:34:44,549 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 11:34:44,584 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 11:34:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:34:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:34:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:34:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:34:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:34:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:34:44,676 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:34:44,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:34:45,623 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:34:45,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:34:45,696 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:34:45,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:34:45 BoogieIcfgContainer [2023-12-16 11:34:45,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:34:45,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:34:45,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:34:45,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:34:45,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:34:44" (1/3) ... [2023-12-16 11:34:45,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77218a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:34:45, skipping insertion in model container [2023-12-16 11:34:45,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:34:44" (2/3) ... [2023-12-16 11:34:45,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77218a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:34:45, skipping insertion in model container [2023-12-16 11:34:45,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:34:45" (3/3) ... [2023-12-16 11:34:45,717 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-56.i [2023-12-16 11:34:45,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:34:45,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:34:45,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:34:45,768 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;@3dd1f9ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:34:45,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:34:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 11:34:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-12-16 11:34:45,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:34:45,792 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:45,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:34:45,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:34:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash 519156629, now seen corresponding path program 1 times [2023-12-16 11:34:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:34:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912735881] [2023-12-16 11:34:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:34:45,810 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 11:34:45,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:34:45,812 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 11:34:45,812 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 11:34:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:34:46,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:34:46,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:34:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 5410 trivial. 0 not checked. [2023-12-16 11:34:46,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:34:46,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:34:46,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912735881] [2023-12-16 11:34:46,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912735881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:34:46,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:34:46,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:34:46,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426663826] [2023-12-16 11:34:46,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:34:46,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:34:46,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:34:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:34:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:34:46,282 INFO L87 Difference]: Start difference. First operand has 117 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-16 11:34:46,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:34:46,362 INFO L93 Difference]: Finished difference Result 231 states and 430 transitions. [2023-12-16 11:34:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:34:46,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 320 [2023-12-16 11:34:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:34:46,372 INFO L225 Difference]: With dead ends: 231 [2023-12-16 11:34:46,373 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 11:34:46,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 319 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 11:34:46,378 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:34:46,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 11:34:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 11:34:46,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-16 11:34:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 11:34:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 184 transitions. [2023-12-16 11:34:46,418 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 184 transitions. Word has length 320 [2023-12-16 11:34:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:34:46,419 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 184 transitions. [2023-12-16 11:34:46,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-16 11:34:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 184 transitions. [2023-12-16 11:34:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-12-16 11:34:46,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:34:46,428 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:46,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:34:46,637 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 11:34:46,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:34:46,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:34:46,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2037729391, now seen corresponding path program 1 times [2023-12-16 11:34:46,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:34:46,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278437263] [2023-12-16 11:34:46,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:34:46,640 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 11:34:46,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:34:46,641 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 11:34:46,644 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 11:34:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:34:46,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 11:34:46,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:34:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 1086 proven. 285 refuted. 0 times theorem prover too weak. 4353 trivial. 0 not checked. [2023-12-16 11:34:47,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:34:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 27 proven. 288 refuted. 0 times theorem prover too weak. 5409 trivial. 0 not checked. [2023-12-16 11:34:48,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:34:48,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278437263] [2023-12-16 11:34:48,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278437263] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:34:48,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:34:48,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 11:34:48,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251849919] [2023-12-16 11:34:48,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:34:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 11:34:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:34:48,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 11:34:48,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 11:34:48,296 INFO L87 Difference]: Start difference. First operand 115 states and 184 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (103), 3 states have call predecessors, (103), 7 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2023-12-16 11:34:48,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:34:48,976 INFO L93 Difference]: Finished difference Result 239 states and 375 transitions. [2023-12-16 11:34:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 11:34:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (103), 3 states have call predecessors, (103), 7 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) Word has length 320 [2023-12-16 11:34:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:34:48,983 INFO L225 Difference]: With dead ends: 239 [2023-12-16 11:34:48,984 INFO L226 Difference]: Without dead ends: 125 [2023-12-16 11:34:48,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 628 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2023-12-16 11:34:48,986 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 158 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 11:34:48,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 318 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 11:34:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-16 11:34:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2023-12-16 11:34:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 65 states have internal predecessors, (80), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 11:34:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 188 transitions. [2023-12-16 11:34:49,007 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 188 transitions. Word has length 320 [2023-12-16 11:34:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:34:49,008 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 188 transitions. [2023-12-16 11:34:49,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (103), 3 states have call predecessors, (103), 7 states have return successors, (104), 3 states have call predecessors, (104), 3 states have call successors, (104) [2023-12-16 11:34:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 188 transitions. [2023-12-16 11:34:49,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-12-16 11:34:49,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:34:49,010 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:49,023 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 11:34:49,220 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 11:34:49,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:34:49,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:34:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash 89203533, now seen corresponding path program 1 times [2023-12-16 11:34:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:34:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145861087] [2023-12-16 11:34:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:34:49,222 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 11:34:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:34:49,223 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 11:34:49,225 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 11:34:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:34:49,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 11:34:49,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:35:35,817 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:35:35,817 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 11:35:36,845 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 (4)] Ended with exit code 0 [2023-12-16 11:35:36,876 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