/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-500_file-69.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 05:12:26,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 05:12:26,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 05:12:26,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 05:12:26,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 05:12:26,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 05:12:26,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 05:12:26,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 05:12:26,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 05:12:26,410 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 05:12:26,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 05:12:26,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 05:12:26,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 05:12:26,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 05:12:26,413 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 05:12:26,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 05:12:26,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 05:12:26,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 05:12:26,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 05:12:26,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 05:12:26,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 05:12:26,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 05:12:26,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 05:12:26,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 05:12:26,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 05:12:26,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 05:12:26,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 05:12:26,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 05:12:26,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 05:12:26,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:12:26,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 05:12:26,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 05:12:26,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 05:12:26,418 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 05:12:26,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 05:12:26,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 05:12:26,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 05:12:26,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 05:12:26,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 05:12:26,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 05:12:26,420 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 05:12:26,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 05:12:26,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 05:12:26,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 05:12:26,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 05:12:26,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 05:12:26,665 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 05:12:26,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2023-12-23 05:12:27,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 05:12:27,988 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 05:12:27,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2023-12-23 05:12:28,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dde5b41d/cf8875d0cb1544eaa17a07b8758874a5/FLAG0a6df7d1e [2023-12-23 05:12:28,023 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dde5b41d/cf8875d0cb1544eaa17a07b8758874a5 [2023-12-23 05:12:28,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 05:12:28,027 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 05:12:28,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 05:12:28,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 05:12:28,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 05:12:28,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f00c4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28, skipping insertion in model container [2023-12-23 05:12:28,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,091 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 05:12:28,200 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-500_file-69.i[916,929] [2023-12-23 05:12:28,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:12:28,399 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 05:12:28,416 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-500_file-69.i[916,929] [2023-12-23 05:12:28,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:12:28,525 INFO L206 MainTranslator]: Completed translation [2023-12-23 05:12:28,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28 WrapperNode [2023-12-23 05:12:28,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 05:12:28,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 05:12:28,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 05:12:28,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 05:12:28,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,620 INFO L138 Inliner]: procedures = 27, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 734 [2023-12-23 05:12:28,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 05:12:28,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 05:12:28,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 05:12:28,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 05:12:28,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,679 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 05:12:28,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 05:12:28,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 05:12:28,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 05:12:28,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 05:12:28,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (1/1) ... [2023-12-23 05:12:28,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:12:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 05:12:28,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 05:12:28,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 05:12:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 05:12:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 05:12:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 05:12:28,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 05:12:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 05:12:28,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 05:12:28,965 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 05:12:28,967 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 05:12:56,120 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 05:12:56,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 05:12:56,185 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 05:12:56,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:12:56 BoogieIcfgContainer [2023-12-23 05:12:56,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 05:12:56,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 05:12:56,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 05:12:56,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 05:12:56,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:12:28" (1/3) ... [2023-12-23 05:12:56,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ac813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:12:56, skipping insertion in model container [2023-12-23 05:12:56,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:12:28" (2/3) ... [2023-12-23 05:12:56,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ac813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:12:56, skipping insertion in model container [2023-12-23 05:12:56,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:12:56" (3/3) ... [2023-12-23 05:12:56,193 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2023-12-23 05:12:56,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 05:12:56,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 05:12:56,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 05:12:56,254 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;@56bdf572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 05:12:56,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 05:12:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 189 states have (on average 1.5767195767195767) internal successors, (298), 190 states have internal predecessors, (298), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-12-23 05:12:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2023-12-23 05:12:56,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:12:56,299 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:12:56,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:12:56,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:12:56,304 INFO L85 PathProgramCache]: Analyzing trace with hash 727114287, now seen corresponding path program 1 times [2023-12-23 05:12:56,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:12:56,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727835876] [2023-12-23 05:12:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:12:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:12:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:12:56,322 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:12:56,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 05:12:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:12:57,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 05:12:57,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:12:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 3054 proven. 0 refuted. 0 times theorem prover too weak. 27450 trivial. 0 not checked. [2023-12-23 05:12:57,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:12:57,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:12:57,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727835876] [2023-12-23 05:12:57,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727835876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:12:57,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:12:57,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:12:57,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662329559] [2023-12-23 05:12:57,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:12:57,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 05:12:57,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:12:57,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 05:12:57,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:12:57,821 INFO L87 Difference]: Start difference. First operand has 316 states, 189 states have (on average 1.5767195767195767) internal successors, (298), 190 states have internal predecessors, (298), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2023-12-23 05:12:57,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:12:57,945 INFO L93 Difference]: Finished difference Result 629 states and 1214 transitions. [2023-12-23 05:12:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 05:12:57,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 766 [2023-12-23 05:12:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:12:57,958 INFO L225 Difference]: With dead ends: 629 [2023-12-23 05:12:57,958 INFO L226 Difference]: Without dead ends: 314 [2023-12-23 05:12:57,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:12:57,965 INFO L413 NwaCegarLoop]: 537 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, 537 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 [2023-12-23 05:12:57,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 537 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:12:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-23 05:12:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-12-23 05:12:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 188 states have (on average 1.553191489361702) internal successors, (292), 188 states have internal predecessors, (292), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-12-23 05:12:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 540 transitions. [2023-12-23 05:12:58,061 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 540 transitions. Word has length 766 [2023-12-23 05:12:58,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:12:58,062 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 540 transitions. [2023-12-23 05:12:58,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2023-12-23 05:12:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 540 transitions. [2023-12-23 05:12:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2023-12-23 05:12:58,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:12:58,080 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:12:58,114 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 [2023-12-23 05:12:58,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:12:58,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:12:58,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:12:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1083158805, now seen corresponding path program 1 times [2023-12-23 05:12:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:12:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285302161] [2023-12-23 05:12:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:12:58,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:12:58,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:12:58,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:12:58,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 05:12:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:12:59,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:12:59,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:12:59,676 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:12:59,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:12:59,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:12:59,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285302161] [2023-12-23 05:12:59,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285302161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:12:59,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:12:59,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:12:59,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182977950] [2023-12-23 05:12:59,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:12:59,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:12:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:12:59,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:12:59,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:12:59,683 INFO L87 Difference]: Start difference. First operand 314 states and 540 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:12:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:12:59,886 INFO L93 Difference]: Finished difference Result 789 states and 1367 transitions. [2023-12-23 05:12:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:12:59,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 766 [2023-12-23 05:12:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:12:59,899 INFO L225 Difference]: With dead ends: 789 [2023-12-23 05:12:59,899 INFO L226 Difference]: Without dead ends: 476 [2023-12-23 05:12:59,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 764 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:12:59,901 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 277 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:12:59,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1048 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 05:12:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-23 05:12:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 473. [2023-12-23 05:12:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 317 states have (on average 1.6246056782334384) internal successors, (515), 318 states have internal predecessors, (515), 153 states have call successors, (153), 2 states have call predecessors, (153), 2 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2023-12-23 05:12:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 821 transitions. [2023-12-23 05:12:59,950 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 821 transitions. Word has length 766 [2023-12-23 05:12:59,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:12:59,952 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 821 transitions. [2023-12-23 05:12:59,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:12:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 821 transitions. [2023-12-23 05:12:59,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2023-12-23 05:12:59,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:12:59,961 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:12:59,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:00,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:00,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:00,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:00,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1479677832, now seen corresponding path program 1 times [2023-12-23 05:13:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:00,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611680852] [2023-12-23 05:13:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:00,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:00,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 05:13:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:01,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:13:01,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:01,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:01,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:01,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:01,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611680852] [2023-12-23 05:13:01,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611680852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:01,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:13:01,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:13:01,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045201121] [2023-12-23 05:13:01,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:01,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:13:01,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:13:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:13:01,635 INFO L87 Difference]: Start difference. First operand 473 states and 821 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:01,789 INFO L93 Difference]: Finished difference Result 952 states and 1646 transitions. [2023-12-23 05:13:01,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:13:01,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 768 [2023-12-23 05:13:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:01,792 INFO L225 Difference]: With dead ends: 952 [2023-12-23 05:13:01,792 INFO L226 Difference]: Without dead ends: 480 [2023-12-23 05:13:01,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:13:01,794 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 236 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:01,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1149 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:13:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-23 05:13:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 391. [2023-12-23 05:13:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 264 states have (on average 1.6098484848484849) internal successors, (425), 264 states have internal predecessors, (425), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-12-23 05:13:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 673 transitions. [2023-12-23 05:13:01,813 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 673 transitions. Word has length 768 [2023-12-23 05:13:01,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:01,814 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 673 transitions. [2023-12-23 05:13:01,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:01,814 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 673 transitions. [2023-12-23 05:13:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2023-12-23 05:13:01,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:01,820 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:01,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:02,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:02,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:02,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:02,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1456509946, now seen corresponding path program 1 times [2023-12-23 05:13:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:02,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618138795] [2023-12-23 05:13:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:02,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:02,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:02,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:02,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 05:13:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:03,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:03,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:04,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:04,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618138795] [2023-12-23 05:13:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618138795] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158380085] [2023-12-23 05:13:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:04,680 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:04,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:04,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:04,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 05:13:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:06,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:13:06,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:06,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [158380085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:06,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:13:06,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 05:13:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772717569] [2023-12-23 05:13:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:06,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:13:06,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:06,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:13:06,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:06,125 INFO L87 Difference]: Start difference. First operand 391 states and 673 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:06,258 INFO L93 Difference]: Finished difference Result 1033 states and 1771 transitions. [2023-12-23 05:13:06,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:13:06,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 768 [2023-12-23 05:13:06,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:06,263 INFO L225 Difference]: With dead ends: 1033 [2023-12-23 05:13:06,263 INFO L226 Difference]: Without dead ends: 643 [2023-12-23 05:13:06,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1616 GetRequests, 1611 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:06,265 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 363 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:06,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1053 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:13:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-12-23 05:13:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 640. [2023-12-23 05:13:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 419 states have (on average 1.5823389021479715) internal successors, (663), 420 states have internal predecessors, (663), 216 states have call successors, (216), 4 states have call predecessors, (216), 4 states have return successors, (216), 215 states have call predecessors, (216), 216 states have call successors, (216) [2023-12-23 05:13:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1095 transitions. [2023-12-23 05:13:06,297 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1095 transitions. Word has length 768 [2023-12-23 05:13:06,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:06,298 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 1095 transitions. [2023-12-23 05:13:06,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1095 transitions. [2023-12-23 05:13:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2023-12-23 05:13:06,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:06,304 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:06,342 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 [2023-12-23 05:13:06,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:06,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:06,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:06,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1937590204, now seen corresponding path program 1 times [2023-12-23 05:13:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:06,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081932834] [2023-12-23 05:13:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:06,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:06,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:06,727 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:06,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 05:13:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:08,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:08,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:09,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:09,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081932834] [2023-12-23 05:13:09,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081932834] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [106528146] [2023-12-23 05:13:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:09,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:09,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:09,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:09,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 05:13:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:11,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:13:11,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:11,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:11,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [106528146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:11,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:13:11,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 05:13:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959606961] [2023-12-23 05:13:11,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:11,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:13:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:13:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:11,311 INFO L87 Difference]: Start difference. First operand 640 states and 1095 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:11,464 INFO L93 Difference]: Finished difference Result 1910 states and 3267 transitions. [2023-12-23 05:13:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:13:11,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 768 [2023-12-23 05:13:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:11,473 INFO L225 Difference]: With dead ends: 1910 [2023-12-23 05:13:11,473 INFO L226 Difference]: Without dead ends: 1271 [2023-12-23 05:13:11,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1616 GetRequests, 1611 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:11,476 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 509 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:11,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1533 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:13:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2023-12-23 05:13:11,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1269. [2023-12-23 05:13:11,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 828 states have (on average 1.565217391304348) internal successors, (1296), 830 states have internal predecessors, (1296), 432 states have call successors, (432), 8 states have call predecessors, (432), 8 states have return successors, (432), 430 states have call predecessors, (432), 432 states have call successors, (432) [2023-12-23 05:13:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2160 transitions. [2023-12-23 05:13:11,564 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2160 transitions. Word has length 768 [2023-12-23 05:13:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:11,565 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 2160 transitions. [2023-12-23 05:13:11,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2160 transitions. [2023-12-23 05:13:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2023-12-23 05:13:11,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:11,571 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:11,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:11,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:11,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:11,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:11,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:11,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1139609536, now seen corresponding path program 1 times [2023-12-23 05:13:11,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:11,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019895453] [2023-12-23 05:13:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:11,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:11,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:11,988 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:11,988 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 (9)] Waiting until timeout for monitored process [2023-12-23 05:13:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:13,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:13,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:14,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:14,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:14,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019895453] [2023-12-23 05:13:14,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019895453] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:14,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [674019654] [2023-12-23 05:13:14,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:14,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:14,970 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:14,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-23 05:13:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:16,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:13:16,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:16,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:16,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:16,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [674019654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:16,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:13:16,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 05:13:16,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641061019] [2023-12-23 05:13:16,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:16,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:13:16,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:16,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:13:16,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:16,521 INFO L87 Difference]: Start difference. First operand 1269 states and 2160 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:16,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:16,856 INFO L93 Difference]: Finished difference Result 3495 states and 5932 transitions. [2023-12-23 05:13:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:13:16,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 769 [2023-12-23 05:13:16,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:16,868 INFO L225 Difference]: With dead ends: 3495 [2023-12-23 05:13:16,868 INFO L226 Difference]: Without dead ends: 2227 [2023-12-23 05:13:16,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1619 GetRequests, 1614 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:16,875 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 333 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:16,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1285 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 05:13:16,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2023-12-23 05:13:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2221. [2023-12-23 05:13:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1420 states have (on average 1.5436619718309859) internal successors, (2192), 1426 states have internal predecessors, (2192), 784 states have call successors, (784), 16 states have call predecessors, (784), 16 states have return successors, (784), 778 states have call predecessors, (784), 784 states have call successors, (784) [2023-12-23 05:13:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3760 transitions. [2023-12-23 05:13:17,029 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3760 transitions. Word has length 769 [2023-12-23 05:13:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:17,030 INFO L495 AbstractCegarLoop]: Abstraction has 2221 states and 3760 transitions. [2023-12-23 05:13:17,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:17,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3760 transitions. [2023-12-23 05:13:17,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2023-12-23 05:13:17,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:17,038 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:17,074 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:17,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:17,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:17,461 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:17,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1414369150, now seen corresponding path program 1 times [2023-12-23 05:13:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:17,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244743084] [2023-12-23 05:13:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:17,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:17,463 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:17,464 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 (11)] Waiting until timeout for monitored process [2023-12-23 05:13:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:18,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:18,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:19,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:20,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:20,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244743084] [2023-12-23 05:13:20,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244743084] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:20,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1446913084] [2023-12-23 05:13:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:20,208 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:20,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:20,210 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:20,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-23 05:13:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:21,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 05:13:21,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:21,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:21,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1446913084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:21,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:13:21,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-23 05:13:21,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945630624] [2023-12-23 05:13:21,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:21,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:13:21,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:21,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:13:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:13:21,804 INFO L87 Difference]: Start difference. First operand 2221 states and 3760 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:22,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:22,469 INFO L93 Difference]: Finished difference Result 6669 states and 11284 transitions. [2023-12-23 05:13:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 05:13:22,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 769 [2023-12-23 05:13:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:22,495 INFO L225 Difference]: With dead ends: 6669 [2023-12-23 05:13:22,495 INFO L226 Difference]: Without dead ends: 4449 [2023-12-23 05:13:22,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1621 GetRequests, 1614 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:13:22,506 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1191 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:22,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2203 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 05:13:22,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2023-12-23 05:13:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 4439. [2023-12-23 05:13:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 2838 states have (on average 1.5384073291050036) internal successors, (4366), 2850 states have internal predecessors, (4366), 1568 states have call successors, (1568), 32 states have call predecessors, (1568), 32 states have return successors, (1568), 1556 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-12-23 05:13:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7502 transitions. [2023-12-23 05:13:22,867 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 7502 transitions. Word has length 769 [2023-12-23 05:13:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:22,868 INFO L495 AbstractCegarLoop]: Abstraction has 4439 states and 7502 transitions. [2023-12-23 05:13:22,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 7502 transitions. [2023-12-23 05:13:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2023-12-23 05:13:22,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:22,875 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:22,910 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 (11)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:23,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:23,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:23,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:23,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2026247998, now seen corresponding path program 1 times [2023-12-23 05:13:23,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:23,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476455317] [2023-12-23 05:13:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:23,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:23,304 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:23,328 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 (13)] Waiting until timeout for monitored process [2023-12-23 05:13:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:24,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:24,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:25,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:26,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:26,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476455317] [2023-12-23 05:13:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476455317] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:26,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1839286444] [2023-12-23 05:13:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:26,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:26,196 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:26,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-23 05:13:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:30,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:13:30,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:13:31,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:13:31,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1839286444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:13:31,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:13:31,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-23 05:13:31,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059981323] [2023-12-23 05:13:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:13:31,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:13:31,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:31,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:13:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:31,683 INFO L87 Difference]: Start difference. First operand 4439 states and 7502 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:32,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:32,096 INFO L93 Difference]: Finished difference Result 13291 states and 22456 transitions. [2023-12-23 05:13:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:13:32,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 769 [2023-12-23 05:13:32,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:32,139 INFO L225 Difference]: With dead ends: 13291 [2023-12-23 05:13:32,139 INFO L226 Difference]: Without dead ends: 8853 [2023-12-23 05:13:32,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1619 GetRequests, 1614 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:13:32,159 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 203 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:32,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 1060 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 05:13:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2023-12-23 05:13:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 8847. [2023-12-23 05:13:32,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 5646 states have (on average 1.5356004250797024) internal successors, (8670), 5670 states have internal predecessors, (8670), 3136 states have call successors, (3136), 64 states have call predecessors, (3136), 64 states have return successors, (3136), 3112 states have call predecessors, (3136), 3136 states have call successors, (3136) [2023-12-23 05:13:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 14942 transitions. [2023-12-23 05:13:32,831 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 14942 transitions. Word has length 769 [2023-12-23 05:13:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:32,832 INFO L495 AbstractCegarLoop]: Abstraction has 8847 states and 14942 transitions. [2023-12-23 05:13:32,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:13:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 14942 transitions. [2023-12-23 05:13:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2023-12-23 05:13:32,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:32,841 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:32,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:33,084 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 (13)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:33,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:33,249 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:33,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash -742711837, now seen corresponding path program 1 times [2023-12-23 05:13:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:33,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303949696] [2023-12-23 05:13:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:33,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:33,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:33,251 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:33,272 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 (15)] Waiting until timeout for monitored process [2023-12-23 05:13:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:34,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:13:34,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15285 proven. 198 refuted. 0 times theorem prover too weak. 15021 trivial. 0 not checked. [2023-12-23 05:13:35,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:35,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:35,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303949696] [2023-12-23 05:13:35,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303949696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1296762761] [2023-12-23 05:13:35,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:35,609 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:35,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:35,610 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:35,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-23 05:13:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:40,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 05:13:40,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 8569 proven. 60 refuted. 0 times theorem prover too weak. 21875 trivial. 0 not checked. [2023-12-23 05:13:43,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:43,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1296762761] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:43,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:13:43,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-23 05:13:43,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461957689] [2023-12-23 05:13:43,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:13:43,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 05:13:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 05:13:43,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-23 05:13:43,499 INFO L87 Difference]: Start difference. First operand 8847 states and 14942 transitions. Second operand has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 4 states have call successors, (248), 4 states have call predecessors, (248), 6 states have return successors, (248), 4 states have call predecessors, (248), 4 states have call successors, (248) [2023-12-23 05:13:47,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:13:48,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:13:48,956 INFO L93 Difference]: Finished difference Result 17979 states and 30132 transitions. [2023-12-23 05:13:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-23 05:13:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 4 states have call successors, (248), 4 states have call predecessors, (248), 6 states have return successors, (248), 4 states have call predecessors, (248), 4 states have call successors, (248) Word has length 769 [2023-12-23 05:13:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:13:49,004 INFO L225 Difference]: With dead ends: 17979 [2023-12-23 05:13:49,005 INFO L226 Difference]: Without dead ends: 9133 [2023-12-23 05:13:49,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1830 GetRequests, 1806 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2023-12-23 05:13:49,031 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 945 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 05:13:49,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1323 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 05:13:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9133 states. [2023-12-23 05:13:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9133 to 8991. [2023-12-23 05:13:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8991 states, 5754 states have (on average 1.5172054223149114) internal successors, (8730), 5778 states have internal predecessors, (8730), 3136 states have call successors, (3136), 100 states have call predecessors, (3136), 100 states have return successors, (3136), 3112 states have call predecessors, (3136), 3136 states have call successors, (3136) [2023-12-23 05:13:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8991 states to 8991 states and 15002 transitions. [2023-12-23 05:13:49,678 INFO L78 Accepts]: Start accepts. Automaton has 8991 states and 15002 transitions. Word has length 769 [2023-12-23 05:13:49,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:13:49,679 INFO L495 AbstractCegarLoop]: Abstraction has 8991 states and 15002 transitions. [2023-12-23 05:13:49,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 4 states have call successors, (248), 4 states have call predecessors, (248), 6 states have return successors, (248), 4 states have call predecessors, (248), 4 states have call successors, (248) [2023-12-23 05:13:49,680 INFO L276 IsEmpty]: Start isEmpty. Operand 8991 states and 15002 transitions. [2023-12-23 05:13:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2023-12-23 05:13:49,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:13:49,690 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:13:49,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:49,941 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 (15)] Forceful destruction successful, exit code 0 [2023-12-23 05:13:50,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:50,105 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:13:50,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:13:50,105 INFO L85 PathProgramCache]: Analyzing trace with hash 2000561989, now seen corresponding path program 1 times [2023-12-23 05:13:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:13:50,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868892282] [2023-12-23 05:13:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:50,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:13:50,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:13:50,108 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:13:50,115 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 (17)] Waiting until timeout for monitored process [2023-12-23 05:13:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:51,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 05:13:51,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15416 proven. 348 refuted. 0 times theorem prover too weak. 14740 trivial. 0 not checked. [2023-12-23 05:13:53,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:53,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:13:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868892282] [2023-12-23 05:13:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868892282] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [457069725] [2023-12-23 05:13:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:13:53,757 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:13:53,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:13:53,758 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:13:53,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-23 05:13:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:13:58,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:13:58,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:13:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 15355 proven. 177 refuted. 0 times theorem prover too weak. 14972 trivial. 0 not checked. [2023-12-23 05:13:59,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:13:59,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [457069725] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:13:59,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:13:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2023-12-23 05:13:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091462410] [2023-12-23 05:13:59,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:13:59,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 05:13:59,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:13:59,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 05:13:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:13:59,627 INFO L87 Difference]: Start difference. First operand 8991 states and 15002 transitions. Second operand has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 3 states have call successors, (182), 3 states have call predecessors, (182), 5 states have return successors, (183), 3 states have call predecessors, (183), 3 states have call successors, (183) [2023-12-23 05:14:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:14:01,895 INFO L93 Difference]: Finished difference Result 18373 states and 30331 transitions. [2023-12-23 05:14:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 05:14:01,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 3 states have call successors, (182), 3 states have call predecessors, (182), 5 states have return successors, (183), 3 states have call predecessors, (183), 3 states have call successors, (183) Word has length 771 [2023-12-23 05:14:01,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:14:01,928 INFO L225 Difference]: With dead ends: 18373 [2023-12-23 05:14:01,929 INFO L226 Difference]: Without dead ends: 9383 [2023-12-23 05:14:01,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1716 GetRequests, 1704 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-23 05:14:01,955 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 500 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-23 05:14:01,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 943 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-23 05:14:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2023-12-23 05:14:02,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 9247. [2023-12-23 05:14:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9247 states, 5946 states have (on average 1.4897410023545241) internal successors, (8858), 5970 states have internal predecessors, (8858), 3136 states have call successors, (3136), 164 states have call predecessors, (3136), 164 states have return successors, (3136), 3112 states have call predecessors, (3136), 3136 states have call successors, (3136) [2023-12-23 05:14:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9247 states to 9247 states and 15130 transitions. [2023-12-23 05:14:02,732 INFO L78 Accepts]: Start accepts. Automaton has 9247 states and 15130 transitions. Word has length 771 [2023-12-23 05:14:02,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:14:02,732 INFO L495 AbstractCegarLoop]: Abstraction has 9247 states and 15130 transitions. [2023-12-23 05:14:02,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 3 states have call successors, (182), 3 states have call predecessors, (182), 5 states have return successors, (183), 3 states have call predecessors, (183), 3 states have call successors, (183) [2023-12-23 05:14:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9247 states and 15130 transitions. [2023-12-23 05:14:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2023-12-23 05:14:02,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:14:02,741 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:14:02,777 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 (17)] Forceful destruction successful, exit code 0 [2023-12-23 05:14:02,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-23 05:14:03,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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=3,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:14:03,164 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:14:03,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:14:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash -345665536, now seen corresponding path program 1 times [2023-12-23 05:14:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:14:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903136960] [2023-12-23 05:14:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:14:03,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:14:03,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:14:03,167 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:14:03,168 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 (19)] Waiting until timeout for monitored process [2023-12-23 05:14:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:14:04,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:14:04,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:14:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:14:04,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:14:04,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:14:04,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903136960] [2023-12-23 05:14:04,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903136960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:14:04,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:14:04,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:14:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618919072] [2023-12-23 05:14:04,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:14:04,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:14:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:14:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:14:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:14:04,651 INFO L87 Difference]: Start difference. First operand 9247 states and 15130 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:14:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:14:05,082 INFO L93 Difference]: Finished difference Result 18646 states and 30396 transitions. [2023-12-23 05:14:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:14:05,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 772 [2023-12-23 05:14:05,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:14:05,111 INFO L225 Difference]: With dead ends: 18646 [2023-12-23 05:14:05,111 INFO L226 Difference]: Without dead ends: 9400 [2023-12-23 05:14:05,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:14:05,183 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 49 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:14:05,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1099 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:14:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9400 states. [2023-12-23 05:14:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9400 to 9399. [2023-12-23 05:14:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9399 states, 6050 states have (on average 1.4760330578512397) internal successors, (8930), 6075 states have internal predecessors, (8930), 3152 states have call successors, (3152), 196 states have call predecessors, (3152), 196 states have return successors, (3152), 3127 states have call predecessors, (3152), 3152 states have call successors, (3152) [2023-12-23 05:14:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9399 states to 9399 states and 15234 transitions. [2023-12-23 05:14:05,819 INFO L78 Accepts]: Start accepts. Automaton has 9399 states and 15234 transitions. Word has length 772 [2023-12-23 05:14:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:14:05,819 INFO L495 AbstractCegarLoop]: Abstraction has 9399 states and 15234 transitions. [2023-12-23 05:14:05,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:14:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 9399 states and 15234 transitions. [2023-12-23 05:14:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2023-12-23 05:14:05,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:14:05,828 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:14:05,878 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 (19)] Forceful destruction successful, exit code 0 [2023-12-23 05:14:06,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:14:06,048 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:14:06,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:14:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash -345605954, now seen corresponding path program 1 times [2023-12-23 05:14:06,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:14:06,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699022360] [2023-12-23 05:14:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:14:06,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:14:06,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:14:06,051 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:14:06,054 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 (20)] Waiting until timeout for monitored process [2023-12-23 05:14:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:14:07,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:14:07,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:14:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:14:10,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:14:10,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:14:10,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699022360] [2023-12-23 05:14:10,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699022360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:14:10,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:14:10,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:14:10,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352603065] [2023-12-23 05:14:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:14:10,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:14:10,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:14:10,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:14:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:14:10,852 INFO L87 Difference]: Start difference. First operand 9399 states and 15234 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:14:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:14:12,204 INFO L93 Difference]: Finished difference Result 27019 states and 43596 transitions. [2023-12-23 05:14:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:14:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 772 [2023-12-23 05:14:12,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:14:12,258 INFO L225 Difference]: With dead ends: 27019 [2023-12-23 05:14:12,258 INFO L226 Difference]: Without dead ends: 17645 [2023-12-23 05:14:12,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:14:12,277 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 477 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:14:12,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1436 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 05:14:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17645 states. [2023-12-23 05:14:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17645 to 17507. [2023-12-23 05:14:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17507 states, 10826 states have (on average 1.4382043229262886) internal successors, (15570), 10875 states have internal predecessors, (15570), 6288 states have call successors, (6288), 392 states have call predecessors, (6288), 392 states have return successors, (6288), 6239 states have call predecessors, (6288), 6288 states have call successors, (6288) [2023-12-23 05:14:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17507 states to 17507 states and 28146 transitions. [2023-12-23 05:14:13,799 INFO L78 Accepts]: Start accepts. Automaton has 17507 states and 28146 transitions. Word has length 772 [2023-12-23 05:14:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:14:13,800 INFO L495 AbstractCegarLoop]: Abstraction has 17507 states and 28146 transitions. [2023-12-23 05:14:13,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:14:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 17507 states and 28146 transitions. [2023-12-23 05:14:13,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2023-12-23 05:14:13,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:14:13,811 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:14:13,845 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 (20)] Forceful destruction successful, exit code 0 [2023-12-23 05:14:14,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:14:14,025 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:14:14,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:14:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash 356773500, now seen corresponding path program 1 times [2023-12-23 05:14:14,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:14:14,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701179048] [2023-12-23 05:14:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:14:14,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:14:14,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:14:14,027 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:14:14,048 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 (21)] Waiting until timeout for monitored process [2023-12-23 05:14:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:14:15,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-23 05:14:15,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:14:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 19995 proven. 567 refuted. 0 times theorem prover too weak. 9942 trivial. 0 not checked. [2023-12-23 05:14:23,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:14:34,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:14:34,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701179048] [2023-12-23 05:14:34,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701179048] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:14:34,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [970581601] [2023-12-23 05:14:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:14:34,984 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:14:34,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:14:34,985 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:14:34,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-23 05:14:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:14:41,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-23 05:14:41,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:14:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 19995 proven. 567 refuted. 0 times theorem prover too weak. 9942 trivial. 0 not checked. [2023-12-23 05:14:46,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:14:51,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [970581601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:14:51,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:14:51,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2023-12-23 05:14:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709758580] [2023-12-23 05:14:51,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:14:51,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-23 05:14:51,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:14:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-23 05:14:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2023-12-23 05:14:51,437 INFO L87 Difference]: Start difference. First operand 17507 states and 28146 transitions. Second operand has 22 states, 22 states have (on average 12.045454545454545) internal successors, (265), 19 states have internal predecessors, (265), 8 states have call successors, (248), 8 states have call predecessors, (248), 12 states have return successors, (248), 8 states have call predecessors, (248), 8 states have call successors, (248) [2023-12-23 05:14:56,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:14:57,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:15:02,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:15:05,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:15:07,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:15:09,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:15:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:15:15,177 INFO L93 Difference]: Finished difference Result 53725 states and 85393 transitions. [2023-12-23 05:15:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-23 05:15:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.045454545454545) internal successors, (265), 19 states have internal predecessors, (265), 8 states have call successors, (248), 8 states have call predecessors, (248), 12 states have return successors, (248), 8 states have call predecessors, (248), 8 states have call successors, (248) Word has length 772 [2023-12-23 05:15:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:15:15,287 INFO L225 Difference]: With dead ends: 53725 [2023-12-23 05:15:15,287 INFO L226 Difference]: Without dead ends: 36243 [2023-12-23 05:15:15,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2200 GetRequests, 2164 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=393, Invalid=1013, Unknown=0, NotChecked=0, Total=1406 [2023-12-23 05:15:15,330 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 969 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-23 05:15:15,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 3534 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2023-12-23 05:15:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36243 states. [2023-12-23 05:15:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36243 to 35699. [2023-12-23 05:15:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35699 states, 22162 states have (on average 1.4232469993682881) internal successors, (31542), 22259 states have internal predecessors, (31542), 12560 states have call successors, (12560), 976 states have call predecessors, (12560), 976 states have return successors, (12560), 12463 states have call predecessors, (12560), 12560 states have call successors, (12560) [2023-12-23 05:15:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35699 states to 35699 states and 56662 transitions. [2023-12-23 05:15:18,663 INFO L78 Accepts]: Start accepts. Automaton has 35699 states and 56662 transitions. Word has length 772 [2023-12-23 05:15:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:15:18,663 INFO L495 AbstractCegarLoop]: Abstraction has 35699 states and 56662 transitions. [2023-12-23 05:15:18,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.045454545454545) internal successors, (265), 19 states have internal predecessors, (265), 8 states have call successors, (248), 8 states have call predecessors, (248), 12 states have return successors, (248), 8 states have call predecessors, (248), 8 states have call successors, (248) [2023-12-23 05:15:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 35699 states and 56662 transitions. [2023-12-23 05:15:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2023-12-23 05:15:18,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:15:18,680 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:15:18,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-23 05:15:18,925 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 (21)] Forceful destruction successful, exit code 0 [2023-12-23 05:15:19,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:15:19,092 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:15:19,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:15:19,093 INFO L85 PathProgramCache]: Analyzing trace with hash -569382662, now seen corresponding path program 1 times [2023-12-23 05:15:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:15:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428988255] [2023-12-23 05:15:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:15:19,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:15:19,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:15:19,095 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:15:19,120 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 (23)] Waiting until timeout for monitored process [2023-12-23 05:15:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:15:20,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 05:15:20,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:15:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 19160 proven. 891 refuted. 0 times theorem prover too weak. 10453 trivial. 0 not checked. [2023-12-23 05:15:29,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:15:31,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:15:31,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428988255] [2023-12-23 05:15:31,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428988255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:15:31,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1178536983] [2023-12-23 05:15:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:15:31,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:15:31,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:15:31,473 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:15:31,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-23 05:15:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:15:44,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 05:15:44,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:15:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 17386 proven. 804 refuted. 0 times theorem prover too weak. 12314 trivial. 0 not checked. [2023-12-23 05:15:55,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:15:56,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1178536983] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:15:56,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:15:56,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2023-12-23 05:15:56,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973774037] [2023-12-23 05:15:56,253 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:15:56,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-23 05:15:56,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:15:56,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-23 05:15:56,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2023-12-23 05:15:56,262 INFO L87 Difference]: Start difference. First operand 35699 states and 56662 transitions. Second operand has 28 states, 28 states have (on average 11.142857142857142) internal successors, (312), 24 states have internal predecessors, (312), 9 states have call successors, (215), 9 states have call predecessors, (215), 13 states have return successors, (216), 9 states have call predecessors, (216), 9 states have call successors, (216) [2023-12-23 05:16:08,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:16:19,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:16:19,329 INFO L93 Difference]: Finished difference Result 77907 states and 122353 transitions. [2023-12-23 05:16:19,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-23 05:16:19,330 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.142857142857142) internal successors, (312), 24 states have internal predecessors, (312), 9 states have call successors, (215), 9 states have call predecessors, (215), 13 states have return successors, (216), 9 states have call predecessors, (216), 9 states have call successors, (216) Word has length 772 [2023-12-23 05:16:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:16:19,426 INFO L225 Difference]: With dead ends: 77907 [2023-12-23 05:16:19,426 INFO L226 Difference]: Without dead ends: 42233 [2023-12-23 05:16:19,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2077 GetRequests, 2030 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=584, Invalid=1768, Unknown=0, NotChecked=0, Total=2352 [2023-12-23 05:16:19,487 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 1897 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 4845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2023-12-23 05:16:19,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 7741 Invalid, 4845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [604 Valid, 4241 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2023-12-23 05:16:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42233 states. [2023-12-23 05:16:23,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42233 to 41082. [2023-12-23 05:16:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41082 states, 26153 states have (on average 1.4232019271211716) internal successors, (37221), 26282 states have internal predecessors, (37221), 13567 states have call successors, (13567), 1361 states have call predecessors, (13567), 1361 states have return successors, (13567), 13438 states have call predecessors, (13567), 13567 states have call successors, (13567) [2023-12-23 05:16:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41082 states to 41082 states and 64355 transitions. [2023-12-23 05:16:23,740 INFO L78 Accepts]: Start accepts. Automaton has 41082 states and 64355 transitions. Word has length 772 [2023-12-23 05:16:23,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:16:23,742 INFO L495 AbstractCegarLoop]: Abstraction has 41082 states and 64355 transitions. [2023-12-23 05:16:23,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.142857142857142) internal successors, (312), 24 states have internal predecessors, (312), 9 states have call successors, (215), 9 states have call predecessors, (215), 13 states have return successors, (216), 9 states have call predecessors, (216), 9 states have call successors, (216) [2023-12-23 05:16:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 41082 states and 64355 transitions. [2023-12-23 05:16:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2023-12-23 05:16:23,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:16:23,763 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:16:23,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-12-23 05:16:24,009 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 (23)] Forceful destruction successful, exit code 0 [2023-12-23 05:16:24,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:16:24,172 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:16:24,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:16:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash 691534588, now seen corresponding path program 1 times [2023-12-23 05:16:24,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:16:24,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285862992] [2023-12-23 05:16:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:16:24,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:16:24,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:16:24,175 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:16:24,179 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 (25)] Waiting until timeout for monitored process [2023-12-23 05:16:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:16:25,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:16:25,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:16:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2023-12-23 05:16:27,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:16:27,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:16:27,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285862992] [2023-12-23 05:16:27,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285862992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:16:27,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:16:27,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:16:27,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412188347] [2023-12-23 05:16:27,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:16:27,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:16:27,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:16:27,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:16:27,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:16:27,422 INFO L87 Difference]: Start difference. First operand 41082 states and 64355 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:16:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:16:34,677 INFO L93 Difference]: Finished difference Result 114154 states and 179353 transitions. [2023-12-23 05:16:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:16:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 772 [2023-12-23 05:16:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:16:34,901 INFO L225 Difference]: With dead ends: 114154 [2023-12-23 05:16:34,901 INFO L226 Difference]: Without dead ends: 73124 [2023-12-23 05:16:34,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:16:34,991 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 174 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:16:34,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1191 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 05:16:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73124 states. [2023-12-23 05:16:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73124 to 73122. [2023-12-23 05:16:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73122 states, 46853 states have (on average 1.4283183574157472) internal successors, (66921), 47086 states have internal predecessors, (66921), 23967 states have call successors, (23967), 2301 states have call predecessors, (23967), 2301 states have return successors, (23967), 23734 states have call predecessors, (23967), 23967 states have call successors, (23967) [2023-12-23 05:16:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73122 states to 73122 states and 114855 transitions. [2023-12-23 05:16:43,818 INFO L78 Accepts]: Start accepts. Automaton has 73122 states and 114855 transitions. Word has length 772 [2023-12-23 05:16:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:16:43,819 INFO L495 AbstractCegarLoop]: Abstraction has 73122 states and 114855 transitions. [2023-12-23 05:16:43,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2023-12-23 05:16:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 73122 states and 114855 transitions. [2023-12-23 05:16:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2023-12-23 05:16:43,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:16:43,847 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:16:43,894 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 (25)] Forceful destruction successful, exit code 0 [2023-12-23 05:16:44,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:16:44,072 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:16:44,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:16:44,073 INFO L85 PathProgramCache]: Analyzing trace with hash -135992571, now seen corresponding path program 1 times [2023-12-23 05:16:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:16:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264885969] [2023-12-23 05:16:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:16:44,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:16:44,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:16:44,076 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:16:44,092 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 (26)] Waiting until timeout for monitored process [2023-12-23 05:16:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:16:46,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-23 05:16:46,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:17:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 18701 proven. 1629 refuted. 0 times theorem prover too weak. 10174 trivial. 0 not checked. [2023-12-23 05:17:17,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:17:18,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:17:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264885969] [2023-12-23 05:17:18,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264885969] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:17:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [366824893] [2023-12-23 05:17:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:17:18,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:17:18,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:17:18,355 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:17:18,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-23 05:17:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:17:36,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 05:17:36,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:17:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 19160 proven. 891 refuted. 0 times theorem prover too weak. 10453 trivial. 0 not checked. [2023-12-23 05:17:45,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:17:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [366824893] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:17:46,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:17:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 15] total 36 [2023-12-23 05:17:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159673746] [2023-12-23 05:17:46,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:17:46,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-23 05:17:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:17:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-23 05:17:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1653, Unknown=1, NotChecked=0, Total=1980 [2023-12-23 05:17:46,820 INFO L87 Difference]: Start difference. First operand 73122 states and 114855 transitions. Second operand has 36 states, 36 states have (on average 7.888888888888889) internal successors, (284), 34 states have internal predecessors, (284), 11 states have call successors, (213), 11 states have call predecessors, (213), 18 states have return successors, (214), 11 states have call predecessors, (214), 11 states have call successors, (214) [2023-12-23 05:18:14,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:18,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:22,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:28,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:18:34,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:39,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:50,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:18:58,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:01,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:06,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:09,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:15,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:18,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:26,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:30,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:35,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:19:39,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:20:02,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:21:18,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:21:22,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:21:30,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:21:34,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:21,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:23,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:28,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:32,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:39,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:43,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:47,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:52,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:22:56,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:28,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:33,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:36,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:41,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:45,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:23:56,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:24:00,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:24:05,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:24:09,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:24:59,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:25:41,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:26:41,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-23 05:26:42,518 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 (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:26:42,530 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:26:42,556 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:26:43,596 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 (26)] Forceful destruction successful, exit code 0 [2023-12-23 05:26:43,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-12-23 05:26:43,731 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 05:26:43,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2115 GetRequests, 2028 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1950 ImplicationChecksByTransitivity, 311.3s TimeCoverageRelationStatistics Valid=1850, Invalid=5591, Unknown=41, NotChecked=0, Total=7482 [2023-12-23 05:26:43,789 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 3864 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 4650 mSolverCounterSat, 405 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 4650 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 235.9s IncrementalHoareTripleChecker+Time [2023-12-23 05:26:43,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3899 Valid, 3909 Invalid, 5078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [405 Valid, 4650 Invalid, 22 Unknown, 0 Unchecked, 235.9s Time] [2023-12-23 05:26:43,790 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 137 [2023-12-23 05:26:43,792 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 05:26:43,792 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-23 05:26:43,796 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:26:43,798 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 05:26:43,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:26:43 BoogieIcfgContainer [2023-12-23 05:26:43,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 05:26:43,799 INFO L158 Benchmark]: Toolchain (without parser) took 855773.10ms. Allocated memory was 204.5MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 138.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 204.5MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.30ms. Allocated memory was 204.5MB in the beginning and 289.4MB in the end (delta: 84.9MB). Free memory was 137.9MB in the beginning and 235.4MB in the end (delta: -97.5MB). Peak memory consumption was 18.3MB. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.08ms. Allocated memory is still 289.4MB. Free memory was 234.9MB in the beginning and 229.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: Boogie Preprocessor took 141.16ms. Allocated memory is still 289.4MB. Free memory was 229.1MB in the beginning and 220.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: RCFGBuilder took 27422.21ms. Allocated memory is still 289.4MB. Free memory was 220.2MB in the beginning and 142.6MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-23 05:26:43,800 INFO L158 Benchmark]: TraceAbstraction took 827612.04ms. Allocated memory was 289.4MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 142.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-23 05:26:43,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 204.5MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.30ms. Allocated memory was 204.5MB in the beginning and 289.4MB in the end (delta: 84.9MB). Free memory was 137.9MB in the beginning and 235.4MB in the end (delta: -97.5MB). Peak memory consumption was 18.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 94.08ms. Allocated memory is still 289.4MB. Free memory was 234.9MB in the beginning and 229.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 141.16ms. Allocated memory is still 289.4MB. Free memory was 229.1MB in the beginning and 220.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 27422.21ms. Allocated memory is still 289.4MB. Free memory was 220.2MB in the beginning and 142.6MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * TraceAbstraction took 827612.04ms. Allocated memory was 289.4MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 142.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 316 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 827.6s, OverallIterations: 16, TraceHistogramMax: 124, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 603.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 mSolverCounterUnknown, 12242 SdHoareTripleChecker+Valid, 281.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11987 mSDsluCounter, 31044 SdHoareTripleChecker+Invalid, 273.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21513 mSDsCounter, 2301 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13095 IncrementalHoareTripleChecker+Invalid, 15419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2301 mSolverCounterUnsat, 9531 mSDtfsCounter, 13095 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22639 GetRequests, 22401 SyntacticMatches, 2 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3180 ImplicationChecksByTransitivity, 320.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73122occurred in iteration=15, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 2233 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 74.8s SatisfiabilityAnalysisTime, 118.5s InterpolantComputationTime, 20016 NumberOfCodeBlocks, 20016 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 19990 ConstructedInterpolants, 167 QuantifiedInterpolants, 107759 SizeOfPredicates, 106 NumberOfNonLiveVariables, 32161 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 26 InterpolantComputations, 11 PerfectInterpolantSequences, 785982/793104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !ENTRY org.eclipse.osgi 4 0 2023-12-23 05:26:43.861 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dde5b41d/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dde5b41d/.metadata/.log.