/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/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:09:15,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:09:15,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:09:15,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:09:15,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:09:15,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:09:15,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:09:15,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:09:15,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:09:15,332 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:09:15,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:09:15,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:09:15,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:09:15,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:09:15,334 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:09:15,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:09:15,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:09:15,335 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:09:15,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:09:15,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:09:15,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:09:15,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:09:15,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:09:15,336 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:09:15,336 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:09:15,336 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:09:15,337 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:09:15,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:09:15,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:09:15,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:09:15,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:09:15,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:09:15,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:09:15,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:09:15,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:09:15,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:09:15,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:09:15,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:09:15,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:09:15,340 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:09:15,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:09:15,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:09:15,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:09:15,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:09:15,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:09:15,572 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:09:15,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2023-12-25 09:09:16,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:09:16,839 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:09:16,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2023-12-25 09:09:16,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0534f9f3/cda54552a0b8483691ad30967806f142/FLAG27640a6cb [2023-12-25 09:09:16,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0534f9f3/cda54552a0b8483691ad30967806f142 [2023-12-25 09:09:16,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:09:16,869 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:09:16,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:09:16,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:09:16,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:09:16,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:09:16" (1/1) ... [2023-12-25 09:09:16,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0bd7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:16, skipping insertion in model container [2023-12-25 09:09:16,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:09:16" (1/1) ... [2023-12-25 09:09:16,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:09:17,160 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2023-12-25 09:09:17,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:09:17,251 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:09:17,306 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2023-12-25 09:09:17,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:09:17,348 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:09:17,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17 WrapperNode [2023-12-25 09:09:17,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:09:17,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:09:17,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:09:17,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:09:17,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,421 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1323 [2023-12-25 09:09:17,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:09:17,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:09:17,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:09:17,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:09:17,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,475 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]. [2023-12-25 09:09:17,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:09:17,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:09:17,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:09:17,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:09:17,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (1/1) ... [2023-12-25 09:09:17,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:09:17,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:09:17,583 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) [2023-12-25 09:09:17,604 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 [2023-12-25 09:09:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:09:17,732 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:09:17,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:09:18,355 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:09:18,410 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:09:18,411 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:09:18,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:09:18 BoogieIcfgContainer [2023-12-25 09:09:18,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:09:18,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:09:18,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:09:18,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:09:18,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:09:16" (1/3) ... [2023-12-25 09:09:18,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc05ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:09:18, skipping insertion in model container [2023-12-25 09:09:18,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:09:17" (2/3) ... [2023-12-25 09:09:18,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afc05ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:09:18, skipping insertion in model container [2023-12-25 09:09:18,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:09:18" (3/3) ... [2023-12-25 09:09:18,418 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2023-12-25 09:09:18,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:09:18,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:09:18,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:09:18,471 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;@e2f8506, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:09:18,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:09:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 315 states have (on average 1.8095238095238095) internal successors, (570), 316 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 09:09:18,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:18,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:18,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:18,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:18,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1414953681, now seen corresponding path program 1 times [2023-12-25 09:09:18,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369753335] [2023-12-25 09:09:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:18,513 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 [2023-12-25 09:09:18,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:18,515 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) [2023-12-25 09:09:18,520 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 [2023-12-25 09:09:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:18,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:18,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:18,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:18,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:18,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369753335] [2023-12-25 09:09:18,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369753335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:18,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:18,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:18,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086476803] [2023-12-25 09:09:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:18,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:18,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:18,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:18,813 INFO L87 Difference]: Start difference. First operand has 317 states, 315 states have (on average 1.8095238095238095) internal successors, (570), 316 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:18,876 INFO L93 Difference]: Finished difference Result 564 states and 987 transitions. [2023-12-25 09:09:18,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:18,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-25 09:09:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:18,892 INFO L225 Difference]: With dead ends: 564 [2023-12-25 09:09:18,892 INFO L226 Difference]: Without dead ends: 431 [2023-12-25 09:09:18,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:18,896 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 221 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:18,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1210 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-25 09:09:18,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2023-12-25 09:09:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.6658878504672898) internal successors, (713), 428 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 713 transitions. [2023-12-25 09:09:18,931 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 713 transitions. Word has length 110 [2023-12-25 09:09:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:18,931 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 713 transitions. [2023-12-25 09:09:18,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 713 transitions. [2023-12-25 09:09:18,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 09:09:18,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:18,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:18,940 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 [2023-12-25 09:09:19,136 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 [2023-12-25 09:09:19,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:19,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash 512229007, now seen corresponding path program 1 times [2023-12-25 09:09:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:19,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485829199] [2023-12-25 09:09:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:19,138 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 [2023-12-25 09:09:19,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:19,139 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) [2023-12-25 09:09:19,168 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 (3)] Waiting until timeout for monitored process [2023-12-25 09:09:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:19,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:19,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:19,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:19,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:19,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485829199] [2023-12-25 09:09:19,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485829199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:19,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:19,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505916426] [2023-12-25 09:09:19,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:19,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:19,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:19,287 INFO L87 Difference]: Start difference. First operand 429 states and 713 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:19,315 INFO L93 Difference]: Finished difference Result 659 states and 1104 transitions. [2023-12-25 09:09:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:19,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-25 09:09:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:19,318 INFO L225 Difference]: With dead ends: 659 [2023-12-25 09:09:19,318 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 09:09:19,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:19,320 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:19,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 09:09:19,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 530. [2023-12-25 09:09:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 1.6729678638941399) internal successors, (885), 529 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 885 transitions. [2023-12-25 09:09:19,341 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 885 transitions. Word has length 113 [2023-12-25 09:09:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:19,342 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 885 transitions. [2023-12-25 09:09:19,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 885 transitions. [2023-12-25 09:09:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 09:09:19,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:19,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:19,361 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 (3)] Ended with exit code 0 [2023-12-25 09:09:19,546 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 [2023-12-25 09:09:19,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:19,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 850243325, now seen corresponding path program 1 times [2023-12-25 09:09:19,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:19,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510202768] [2023-12-25 09:09:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:19,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:09:19,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:19,549 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) [2023-12-25 09:09:19,565 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 [2023-12-25 09:09:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:19,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:19,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:19,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:19,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:19,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510202768] [2023-12-25 09:09:19,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510202768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:19,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:19,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:19,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858857518] [2023-12-25 09:09:19,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:19,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:19,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:19,824 INFO L87 Difference]: Start difference. First operand 530 states and 885 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:19,887 INFO L93 Difference]: Finished difference Result 1561 states and 2604 transitions. [2023-12-25 09:09:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:19,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-25 09:09:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:19,892 INFO L225 Difference]: With dead ends: 1561 [2023-12-25 09:09:19,892 INFO L226 Difference]: Without dead ends: 1041 [2023-12-25 09:09:19,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:19,894 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 1225 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:19,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 1199 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:19,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-12-25 09:09:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1039. [2023-12-25 09:09:19,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1038 states have (on average 1.6618497109826589) internal successors, (1725), 1038 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1725 transitions. [2023-12-25 09:09:19,910 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1725 transitions. Word has length 113 [2023-12-25 09:09:19,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:19,910 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1725 transitions. [2023-12-25 09:09:19,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:19,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1725 transitions. [2023-12-25 09:09:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 09:09:19,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:19,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:19,918 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 [2023-12-25 09:09:20,114 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 [2023-12-25 09:09:20,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:20,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash 878477372, now seen corresponding path program 1 times [2023-12-25 09:09:20,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:20,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502815376] [2023-12-25 09:09:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:20,116 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 [2023-12-25 09:09:20,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:20,117 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) [2023-12-25 09:09:20,143 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 [2023-12-25 09:09:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:20,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:20,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:20,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:20,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502815376] [2023-12-25 09:09:20,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502815376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:20,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:20,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:20,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326652494] [2023-12-25 09:09:20,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:20,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:20,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:20,398 INFO L87 Difference]: Start difference. First operand 1039 states and 1725 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:20,467 INFO L93 Difference]: Finished difference Result 3069 states and 5094 transitions. [2023-12-25 09:09:20,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:20,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-25 09:09:20,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:20,475 INFO L225 Difference]: With dead ends: 3069 [2023-12-25 09:09:20,475 INFO L226 Difference]: Without dead ends: 2041 [2023-12-25 09:09:20,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:20,480 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 1219 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:20,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1196 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2023-12-25 09:09:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2039. [2023-12-25 09:09:20,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2038 states have (on average 1.6511285574092247) internal successors, (3365), 2038 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 3365 transitions. [2023-12-25 09:09:20,513 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 3365 transitions. Word has length 115 [2023-12-25 09:09:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:20,514 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 3365 transitions. [2023-12-25 09:09:20,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 3365 transitions. [2023-12-25 09:09:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 09:09:20,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:20,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:20,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:20,720 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 [2023-12-25 09:09:20,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:20,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash -565339262, now seen corresponding path program 1 times [2023-12-25 09:09:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:20,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295395606] [2023-12-25 09:09:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:20,722 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 [2023-12-25 09:09:20,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:20,723 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2023-12-25 09:09:20,724 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 (6)] Waiting until timeout for monitored process [2023-12-25 09:09:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:20,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:20,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:20,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:20,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:20,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295395606] [2023-12-25 09:09:20,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295395606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:20,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:20,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:20,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442179907] [2023-12-25 09:09:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:20,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:20,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:20,879 INFO L87 Difference]: Start difference. First operand 2039 states and 3365 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:20,919 INFO L93 Difference]: Finished difference Result 6062 states and 10004 transitions. [2023-12-25 09:09:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-25 09:09:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:20,929 INFO L225 Difference]: With dead ends: 6062 [2023-12-25 09:09:20,929 INFO L226 Difference]: Without dead ends: 4051 [2023-12-25 09:09:20,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:20,932 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 506 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:20,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1530 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2023-12-25 09:09:20,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 2053. [2023-12-25 09:09:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2053 states, 2052 states have (on average 1.6481481481481481) internal successors, (3382), 2052 states have internal predecessors, (3382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 3382 transitions. [2023-12-25 09:09:20,975 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 3382 transitions. Word has length 117 [2023-12-25 09:09:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:20,975 INFO L495 AbstractCegarLoop]: Abstraction has 2053 states and 3382 transitions. [2023-12-25 09:09:20,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 3382 transitions. [2023-12-25 09:09:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 09:09:20,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:20,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:21,000 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 (6)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:21,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2023-12-25 09:09:21,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:21,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:21,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1855635910, now seen corresponding path program 1 times [2023-12-25 09:09:21,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:21,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198485939] [2023-12-25 09:09:21,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:21,190 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 [2023-12-25 09:09:21,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:21,192 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) [2023-12-25 09:09:21,200 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 [2023-12-25 09:09:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:21,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:21,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:21,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:21,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:21,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198485939] [2023-12-25 09:09:21,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198485939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:21,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:21,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:21,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227580874] [2023-12-25 09:09:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:21,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:21,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:21,497 INFO L87 Difference]: Start difference. First operand 2053 states and 3382 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:21,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:21,562 INFO L93 Difference]: Finished difference Result 6028 states and 9939 transitions. [2023-12-25 09:09:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:21,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-25 09:09:21,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:21,572 INFO L225 Difference]: With dead ends: 6028 [2023-12-25 09:09:21,572 INFO L226 Difference]: Without dead ends: 4015 [2023-12-25 09:09:21,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:21,576 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 1210 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:21,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1191 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2023-12-25 09:09:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 4013. [2023-12-25 09:09:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 4012 states have (on average 1.639332003988036) internal successors, (6577), 4012 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:21,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 6577 transitions. [2023-12-25 09:09:21,636 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 6577 transitions. Word has length 118 [2023-12-25 09:09:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:21,637 INFO L495 AbstractCegarLoop]: Abstraction has 4013 states and 6577 transitions. [2023-12-25 09:09:21,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 6577 transitions. [2023-12-25 09:09:21,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 09:09:21,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:21,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:21,645 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 [2023-12-25 09:09:21,842 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 [2023-12-25 09:09:21,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:21,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:21,843 INFO L85 PathProgramCache]: Analyzing trace with hash -115219648, now seen corresponding path program 1 times [2023-12-25 09:09:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023021524] [2023-12-25 09:09:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:21,844 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 [2023-12-25 09:09:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:21,845 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-25 09:09:21,847 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 (8)] Waiting until timeout for monitored process [2023-12-25 09:09:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:21,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:21,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:21,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:21,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:21,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023021524] [2023-12-25 09:09:21,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023021524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:21,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:21,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:09:21,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640368508] [2023-12-25 09:09:21,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:21,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:21,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:21,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:21,982 INFO L87 Difference]: Start difference. First operand 4013 states and 6577 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:22,053 INFO L93 Difference]: Finished difference Result 13994 states and 22793 transitions. [2023-12-25 09:09:22,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:09:22,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-25 09:09:22,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:22,081 INFO L225 Difference]: With dead ends: 13994 [2023-12-25 09:09:22,081 INFO L226 Difference]: Without dead ends: 10524 [2023-12-25 09:09:22,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:22,088 INFO L413 NwaCegarLoop]: 1199 mSDtfsCounter, 1172 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:22,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2589 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2023-12-25 09:09:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 4474. [2023-12-25 09:09:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4474 states, 4473 states have (on average 1.644086742678292) internal successors, (7354), 4473 states have internal predecessors, (7354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 7354 transitions. [2023-12-25 09:09:22,185 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 7354 transitions. Word has length 119 [2023-12-25 09:09:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:22,185 INFO L495 AbstractCegarLoop]: Abstraction has 4474 states and 7354 transitions. [2023-12-25 09:09:22,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 7354 transitions. [2023-12-25 09:09:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 09:09:22,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:22,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:22,202 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 (8)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:22,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-25 09:09:22,392 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:22,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:22,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1771885598, now seen corresponding path program 1 times [2023-12-25 09:09:22,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:22,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640760641] [2023-12-25 09:09:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:22,393 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 [2023-12-25 09:09:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:22,394 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) [2023-12-25 09:09:22,427 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 [2023-12-25 09:09:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:22,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:22,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:22,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:22,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:22,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640760641] [2023-12-25 09:09:22,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640760641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:22,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:22,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:22,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847669924] [2023-12-25 09:09:22,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:22,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:22,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:22,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:22,613 INFO L87 Difference]: Start difference. First operand 4474 states and 7354 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:22,665 INFO L93 Difference]: Finished difference Result 9418 states and 15616 transitions. [2023-12-25 09:09:22,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-25 09:09:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:22,690 INFO L225 Difference]: With dead ends: 9418 [2023-12-25 09:09:22,690 INFO L226 Difference]: Without dead ends: 6844 [2023-12-25 09:09:22,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:22,695 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 186 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:22,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1016 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6844 states. [2023-12-25 09:09:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6844 to 6842. [2023-12-25 09:09:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6842 states, 6841 states have (on average 1.6480046776787018) internal successors, (11274), 6841 states have internal predecessors, (11274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6842 states to 6842 states and 11274 transitions. [2023-12-25 09:09:22,777 INFO L78 Accepts]: Start accepts. Automaton has 6842 states and 11274 transitions. Word has length 120 [2023-12-25 09:09:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:22,777 INFO L495 AbstractCegarLoop]: Abstraction has 6842 states and 11274 transitions. [2023-12-25 09:09:22,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6842 states and 11274 transitions. [2023-12-25 09:09:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 09:09:22,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:22,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:22,790 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 [2023-12-25 09:09:22,984 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 [2023-12-25 09:09:22,985 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:22,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash -201647434, now seen corresponding path program 1 times [2023-12-25 09:09:22,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:22,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203286049] [2023-12-25 09:09:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:22,986 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 [2023-12-25 09:09:22,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:22,992 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-25 09:09:22,993 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 (10)] Waiting until timeout for monitored process [2023-12-25 09:09:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:23,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:23,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:23,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:23,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:23,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203286049] [2023-12-25 09:09:23,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203286049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:23,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:23,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:23,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505602265] [2023-12-25 09:09:23,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:23,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:23,228 INFO L87 Difference]: Start difference. First operand 6842 states and 11274 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:23,303 INFO L93 Difference]: Finished difference Result 19834 states and 32704 transitions. [2023-12-25 09:09:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:23,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-25 09:09:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:23,323 INFO L225 Difference]: With dead ends: 19834 [2023-12-25 09:09:23,323 INFO L226 Difference]: Without dead ends: 13226 [2023-12-25 09:09:23,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:23,334 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1324 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:23,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1023 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13226 states. [2023-12-25 09:09:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13226 to 13224. [2023-12-25 09:09:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13224 states, 13223 states have (on average 1.6388867881721243) internal successors, (21671), 13223 states have internal predecessors, (21671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13224 states to 13224 states and 21671 transitions. [2023-12-25 09:09:23,561 INFO L78 Accepts]: Start accepts. Automaton has 13224 states and 21671 transitions. Word has length 123 [2023-12-25 09:09:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:23,561 INFO L495 AbstractCegarLoop]: Abstraction has 13224 states and 21671 transitions. [2023-12-25 09:09:23,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13224 states and 21671 transitions. [2023-12-25 09:09:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 09:09:23,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:23,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:23,581 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 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:23,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-25 09:09:23,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:23,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:23,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1018834380, now seen corresponding path program 1 times [2023-12-25 09:09:23,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:23,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69493506] [2023-12-25 09:09:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:23,786 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 [2023-12-25 09:09:23,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:23,787 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) [2023-12-25 09:09:23,789 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 [2023-12-25 09:09:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:23,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:23,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:23,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:23,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:23,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69493506] [2023-12-25 09:09:23,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69493506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:23,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:23,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:23,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895068994] [2023-12-25 09:09:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:23,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:23,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:23,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:23,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:23,913 INFO L87 Difference]: Start difference. First operand 13224 states and 21671 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:23,969 INFO L93 Difference]: Finished difference Result 22372 states and 36961 transitions. [2023-12-25 09:09:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:23,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2023-12-25 09:09:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:24,067 INFO L225 Difference]: With dead ends: 22372 [2023-12-25 09:09:24,067 INFO L226 Difference]: Without dead ends: 17330 [2023-12-25 09:09:24,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:24,074 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 187 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:24,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1153 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17330 states. [2023-12-25 09:09:24,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17330 to 17328. [2023-12-25 09:09:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17328 states, 17327 states have (on average 1.6422346626652047) internal successors, (28455), 17327 states have internal predecessors, (28455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17328 states to 17328 states and 28455 transitions. [2023-12-25 09:09:24,326 INFO L78 Accepts]: Start accepts. Automaton has 17328 states and 28455 transitions. Word has length 124 [2023-12-25 09:09:24,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:24,327 INFO L495 AbstractCegarLoop]: Abstraction has 17328 states and 28455 transitions. [2023-12-25 09:09:24,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand 17328 states and 28455 transitions. [2023-12-25 09:09:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 09:09:24,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:24,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:24,353 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 [2023-12-25 09:09:24,538 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 [2023-12-25 09:09:24,538 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:24,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash 190145969, now seen corresponding path program 1 times [2023-12-25 09:09:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:24,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511402781] [2023-12-25 09:09:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:24,541 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 [2023-12-25 09:09:24,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:24,542 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-25 09:09:24,574 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 (12)] Waiting until timeout for monitored process [2023-12-25 09:09:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:24,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:24,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:24,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:24,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:24,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511402781] [2023-12-25 09:09:24,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511402781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:24,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:24,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:24,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380227137] [2023-12-25 09:09:24,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:24,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:24,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:24,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:24,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:24,693 INFO L87 Difference]: Start difference. First operand 17328 states and 28455 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:24,885 INFO L93 Difference]: Finished difference Result 50975 states and 83715 transitions. [2023-12-25 09:09:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-25 09:09:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:25,052 INFO L225 Difference]: With dead ends: 50975 [2023-12-25 09:09:25,052 INFO L226 Difference]: Without dead ends: 33861 [2023-12-25 09:09:25,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:25,069 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 1282 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:25,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1181 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:09:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33861 states. [2023-12-25 09:09:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33861 to 33859. [2023-12-25 09:09:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33859 states, 33858 states have (on average 1.6316970878374386) internal successors, (55246), 33858 states have internal predecessors, (55246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33859 states to 33859 states and 55246 transitions. [2023-12-25 09:09:25,475 INFO L78 Accepts]: Start accepts. Automaton has 33859 states and 55246 transitions. Word has length 125 [2023-12-25 09:09:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:25,475 INFO L495 AbstractCegarLoop]: Abstraction has 33859 states and 55246 transitions. [2023-12-25 09:09:25,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 33859 states and 55246 transitions. [2023-12-25 09:09:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 09:09:25,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:25,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:25,507 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 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:25,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-25 09:09:25,692 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:25,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:25,693 INFO L85 PathProgramCache]: Analyzing trace with hash -952974311, now seen corresponding path program 1 times [2023-12-25 09:09:25,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:25,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56464449] [2023-12-25 09:09:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:25,693 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 [2023-12-25 09:09:25,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:25,694 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) [2023-12-25 09:09:25,696 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 [2023-12-25 09:09:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:25,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:25,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:25,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:25,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56464449] [2023-12-25 09:09:25,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56464449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:25,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:25,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:25,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362059978] [2023-12-25 09:09:25,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:25,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:25,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:25,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:25,969 INFO L87 Difference]: Start difference. First operand 33859 states and 55246 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:26,282 INFO L93 Difference]: Finished difference Result 100488 states and 164045 transitions. [2023-12-25 09:09:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:26,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2023-12-25 09:09:26,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:26,372 INFO L225 Difference]: With dead ends: 100488 [2023-12-25 09:09:26,373 INFO L226 Difference]: Without dead ends: 67220 [2023-12-25 09:09:26,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:26,416 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 470 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:26,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1496 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67220 states. [2023-12-25 09:09:26,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67220 to 34050. [2023-12-25 09:09:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34050 states, 34049 states have (on average 1.629181473758407) internal successors, (55472), 34049 states have internal predecessors, (55472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34050 states to 34050 states and 55472 transitions. [2023-12-25 09:09:27,007 INFO L78 Accepts]: Start accepts. Automaton has 34050 states and 55472 transitions. Word has length 128 [2023-12-25 09:09:27,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:27,007 INFO L495 AbstractCegarLoop]: Abstraction has 34050 states and 55472 transitions. [2023-12-25 09:09:27,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 34050 states and 55472 transitions. [2023-12-25 09:09:27,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 09:09:27,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:27,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:27,030 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 [2023-12-25 09:09:27,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2023-12-25 09:09:27,222 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:27,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash -301923564, now seen corresponding path program 1 times [2023-12-25 09:09:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:27,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065444341] [2023-12-25 09:09:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:27,224 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 [2023-12-25 09:09:27,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:27,225 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-25 09:09:27,234 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 (14)] Waiting until timeout for monitored process [2023-12-25 09:09:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:27,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:27,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:27,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:27,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:27,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065444341] [2023-12-25 09:09:27,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065444341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:27,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:27,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:27,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127442215] [2023-12-25 09:09:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:27,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:27,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:27,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:27,569 INFO L87 Difference]: Start difference. First operand 34050 states and 55472 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:27,856 INFO L93 Difference]: Finished difference Result 96646 states and 157370 transitions. [2023-12-25 09:09:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:27,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2023-12-25 09:09:27,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:27,930 INFO L225 Difference]: With dead ends: 96646 [2023-12-25 09:09:27,930 INFO L226 Difference]: Without dead ends: 65776 [2023-12-25 09:09:27,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:27,950 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 376 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:27,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1474 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65776 states. [2023-12-25 09:09:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65776 to 65774. [2023-12-25 09:09:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65774 states, 65773 states have (on average 1.6207866449759019) internal successors, (106604), 65773 states have internal predecessors, (106604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65774 states to 65774 states and 106604 transitions. [2023-12-25 09:09:28,746 INFO L78 Accepts]: Start accepts. Automaton has 65774 states and 106604 transitions. Word has length 128 [2023-12-25 09:09:28,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:28,747 INFO L495 AbstractCegarLoop]: Abstraction has 65774 states and 106604 transitions. [2023-12-25 09:09:28,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 65774 states and 106604 transitions. [2023-12-25 09:09:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 09:09:28,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:28,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:28,772 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 (14)] Ended with exit code 0 [2023-12-25 09:09:28,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-25 09:09:28,972 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:28,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash 230046393, now seen corresponding path program 1 times [2023-12-25 09:09:28,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:28,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311608352] [2023-12-25 09:09:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:28,973 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 [2023-12-25 09:09:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:28,974 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) [2023-12-25 09:09:28,975 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 [2023-12-25 09:09:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:29,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:29,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:29,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:29,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:29,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:29,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311608352] [2023-12-25 09:09:29,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311608352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:29,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:29,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:29,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861390764] [2023-12-25 09:09:29,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:29,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:29,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:29,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:29,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:29,200 INFO L87 Difference]: Start difference. First operand 65774 states and 106604 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:29,771 INFO L93 Difference]: Finished difference Result 137368 states and 222182 transitions. [2023-12-25 09:09:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:29,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2023-12-25 09:09:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:30,086 INFO L225 Difference]: With dead ends: 137368 [2023-12-25 09:09:30,086 INFO L226 Difference]: Without dead ends: 72407 [2023-12-25 09:09:30,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:30,118 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1168 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:30,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1171 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:09:30,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72407 states. [2023-12-25 09:09:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72407 to 66309. [2023-12-25 09:09:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66309 states, 66308 states have (on average 1.620422875067865) internal successors, (107447), 66308 states have internal predecessors, (107447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66309 states to 66309 states and 107447 transitions. [2023-12-25 09:09:30,946 INFO L78 Accepts]: Start accepts. Automaton has 66309 states and 107447 transitions. Word has length 129 [2023-12-25 09:09:30,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:30,948 INFO L495 AbstractCegarLoop]: Abstraction has 66309 states and 107447 transitions. [2023-12-25 09:09:30,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 66309 states and 107447 transitions. [2023-12-25 09:09:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 09:09:30,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:30,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:30,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:31,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2023-12-25 09:09:31,187 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:31,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:31,188 INFO L85 PathProgramCache]: Analyzing trace with hash 879625422, now seen corresponding path program 1 times [2023-12-25 09:09:31,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:31,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240054591] [2023-12-25 09:09:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:31,188 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 [2023-12-25 09:09:31,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:31,190 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-25 09:09:31,191 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 (16)] Waiting until timeout for monitored process [2023-12-25 09:09:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:31,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:31,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:31,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:31,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:31,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240054591] [2023-12-25 09:09:31,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240054591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:31,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:31,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:09:31,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923608070] [2023-12-25 09:09:31,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:31,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:31,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:31,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:31,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:31,336 INFO L87 Difference]: Start difference. First operand 66309 states and 107447 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:32,305 INFO L93 Difference]: Finished difference Result 234724 states and 379495 transitions. [2023-12-25 09:09:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:09:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-25 09:09:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:32,647 INFO L225 Difference]: With dead ends: 234724 [2023-12-25 09:09:32,647 INFO L226 Difference]: Without dead ends: 175714 [2023-12-25 09:09:32,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:32,753 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1079 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:32,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2487 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:32,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175714 states. [2023-12-25 09:09:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175714 to 72206. [2023-12-25 09:09:34,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72206 states, 72205 states have (on average 1.6214389585208782) internal successors, (117076), 72205 states have internal predecessors, (117076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72206 states to 72206 states and 117076 transitions. [2023-12-25 09:09:34,464 INFO L78 Accepts]: Start accepts. Automaton has 72206 states and 117076 transitions. Word has length 130 [2023-12-25 09:09:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:34,464 INFO L495 AbstractCegarLoop]: Abstraction has 72206 states and 117076 transitions. [2023-12-25 09:09:34,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 72206 states and 117076 transitions. [2023-12-25 09:09:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 09:09:34,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:34,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:34,493 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 (16)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:34,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-25 09:09:34,693 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:34,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1485672501, now seen corresponding path program 1 times [2023-12-25 09:09:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:34,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055924964] [2023-12-25 09:09:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:34,694 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 [2023-12-25 09:09:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:34,695 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) [2023-12-25 09:09:34,696 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 [2023-12-25 09:09:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:34,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:34,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:34,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:34,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055924964] [2023-12-25 09:09:34,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055924964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:34,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:34,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467635066] [2023-12-25 09:09:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:34,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:34,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:34,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:34,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:34,858 INFO L87 Difference]: Start difference. First operand 72206 states and 117076 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:35,497 INFO L93 Difference]: Finished difference Result 172050 states and 281046 transitions. [2023-12-25 09:09:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:35,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-25 09:09:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:35,686 INFO L225 Difference]: With dead ends: 172050 [2023-12-25 09:09:35,686 INFO L226 Difference]: Without dead ends: 119824 [2023-12-25 09:09:35,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:35,757 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 174 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:35,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1018 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119824 states. [2023-12-25 09:09:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119824 to 119822. [2023-12-25 09:09:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119822 states, 119821 states have (on average 1.6228540906852722) internal successors, (194452), 119821 states have internal predecessors, (194452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119822 states to 119822 states and 194452 transitions. [2023-12-25 09:09:37,752 INFO L78 Accepts]: Start accepts. Automaton has 119822 states and 194452 transitions. Word has length 131 [2023-12-25 09:09:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:37,752 INFO L495 AbstractCegarLoop]: Abstraction has 119822 states and 194452 transitions. [2023-12-25 09:09:37,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 119822 states and 194452 transitions. [2023-12-25 09:09:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 09:09:37,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:37,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:37,818 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 [2023-12-25 09:09:38,018 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 [2023-12-25 09:09:38,019 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:38,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:38,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1459109501, now seen corresponding path program 1 times [2023-12-25 09:09:38,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:38,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886967820] [2023-12-25 09:09:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:38,020 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 [2023-12-25 09:09:38,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:38,021 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 09:09:38,023 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 (18)] Waiting until timeout for monitored process [2023-12-25 09:09:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:38,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:09:38,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:38,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:38,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886967820] [2023-12-25 09:09:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886967820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:38,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:38,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:38,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121144221] [2023-12-25 09:09:38,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:38,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:09:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:09:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:09:38,289 INFO L87 Difference]: Start difference. First operand 119822 states and 194452 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:39,544 INFO L93 Difference]: Finished difference Result 347070 states and 563892 transitions. [2023-12-25 09:09:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:09:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-25 09:09:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:40,284 INFO L225 Difference]: With dead ends: 347070 [2023-12-25 09:09:40,284 INFO L226 Difference]: Without dead ends: 230380 [2023-12-25 09:09:40,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:09:40,331 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1259 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:40,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1036 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:40,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230380 states. [2023-12-25 09:09:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230380 to 230378. [2023-12-25 09:09:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230378 states, 230377 states have (on average 1.614527491893722) internal successors, (371950), 230377 states have internal predecessors, (371950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230378 states to 230378 states and 371950 transitions. [2023-12-25 09:09:43,419 INFO L78 Accepts]: Start accepts. Automaton has 230378 states and 371950 transitions. Word has length 134 [2023-12-25 09:09:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:43,420 INFO L495 AbstractCegarLoop]: Abstraction has 230378 states and 371950 transitions. [2023-12-25 09:09:43,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 230378 states and 371950 transitions. [2023-12-25 09:09:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 09:09:43,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:43,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:43,871 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 (18)] Forceful destruction successful, exit code 0 [2023-12-25 09:09:44,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 09:09:44,045 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:44,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:44,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2060171090, now seen corresponding path program 1 times [2023-12-25 09:09:44,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:44,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144347351] [2023-12-25 09:09:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:44,047 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 [2023-12-25 09:09:44,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:44,048 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) [2023-12-25 09:09:44,049 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 [2023-12-25 09:09:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:44,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:44,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:44,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:44,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:44,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144347351] [2023-12-25 09:09:44,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144347351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:44,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:44,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:44,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889089516] [2023-12-25 09:09:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:44,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:44,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:44,226 INFO L87 Difference]: Start difference. First operand 230378 states and 371950 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:45,684 INFO L93 Difference]: Finished difference Result 409326 states and 665840 transitions. [2023-12-25 09:09:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:45,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 09:09:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:46,655 INFO L225 Difference]: With dead ends: 409326 [2023-12-25 09:09:46,655 INFO L226 Difference]: Without dead ends: 307372 [2023-12-25 09:09:46,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:46,728 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 175 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:46,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1127 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:46,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307372 states. [2023-12-25 09:09:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307372 to 307370. [2023-12-25 09:09:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307370 states, 307369 states have (on average 1.6173849672543426) internal successors, (497134), 307369 states have internal predecessors, (497134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307370 states to 307370 states and 497134 transitions. [2023-12-25 09:09:50,863 INFO L78 Accepts]: Start accepts. Automaton has 307370 states and 497134 transitions. Word has length 135 [2023-12-25 09:09:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:09:50,864 INFO L495 AbstractCegarLoop]: Abstraction has 307370 states and 497134 transitions. [2023-12-25 09:09:50,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 307370 states and 497134 transitions. [2023-12-25 09:09:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 09:09:50,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:09:50,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:09:50,909 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 [2023-12-25 09:09:51,106 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 [2023-12-25 09:09:51,107 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:09:51,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:09:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1508165686, now seen corresponding path program 1 times [2023-12-25 09:09:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:09:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431479277] [2023-12-25 09:09:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:09:51,108 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 [2023-12-25 09:09:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:09:51,109 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) [2023-12-25 09:09:51,114 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 [2023-12-25 09:09:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:09:51,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:09:51,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:09:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:09:51,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:09:51,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:09:51,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431479277] [2023-12-25 09:09:51,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431479277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:09:51,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:09:51,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:09:51,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098944171] [2023-12-25 09:09:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:09:51,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:09:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:09:51,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:09:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:51,751 INFO L87 Difference]: Start difference. First operand 307370 states and 497134 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:09:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:09:55,042 INFO L93 Difference]: Finished difference Result 885740 states and 1433050 transitions. [2023-12-25 09:09:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:09:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-25 09:09:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:09:56,727 INFO L225 Difference]: With dead ends: 885740 [2023-12-25 09:09:56,727 INFO L226 Difference]: Without dead ends: 593964 [2023-12-25 09:09:57,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:09:57,048 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 372 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:09:57,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1476 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:09:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593964 states. [2023-12-25 09:10:03,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593964 to 593962. [2023-12-25 09:10:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593962 states, 593961 states have (on average 1.6116782078284602) internal successors, (957274), 593961 states have internal predecessors, (957274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593962 states to 593962 states and 957274 transitions. [2023-12-25 09:10:06,504 INFO L78 Accepts]: Start accepts. Automaton has 593962 states and 957274 transitions. Word has length 136 [2023-12-25 09:10:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:10:06,504 INFO L495 AbstractCegarLoop]: Abstraction has 593962 states and 957274 transitions. [2023-12-25 09:10:06,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 593962 states and 957274 transitions. [2023-12-25 09:10:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 09:10:06,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:10:06,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:10:06,589 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 [2023-12-25 09:10:06,788 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 [2023-12-25 09:10:06,788 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:10:06,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:10:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1354316245, now seen corresponding path program 1 times [2023-12-25 09:10:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:10:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711631139] [2023-12-25 09:10:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:10:06,790 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 [2023-12-25 09:10:06,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:10:06,791 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) [2023-12-25 09:10:06,827 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 [2023-12-25 09:10:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:10:06,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:10:06,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:10:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:10:06,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:10:06,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:10:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711631139] [2023-12-25 09:10:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711631139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:10:06,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:10:06,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:10:06,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870429385] [2023-12-25 09:10:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:10:06,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:10:06,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:10:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:10:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:10:06,903 INFO L87 Difference]: Start difference. First operand 593962 states and 957274 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:10:13,869 INFO L93 Difference]: Finished difference Result 1769750 states and 2852961 transitions. [2023-12-25 09:10:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:10:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 09:10:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:10:16,234 INFO L225 Difference]: With dead ends: 1769750 [2023-12-25 09:10:16,234 INFO L226 Difference]: Without dead ends: 1182644 [2023-12-25 09:10:16,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:10:16,950 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 443 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:10:16,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1465 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:10:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182644 states. [2023-12-25 09:10:29,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182644 to 596102. [2023-12-25 09:10:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596102 states, 596101 states have (on average 1.6109786764323495) internal successors, (960306), 596101 states have internal predecessors, (960306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596102 states to 596102 states and 960306 transitions. [2023-12-25 09:10:31,941 INFO L78 Accepts]: Start accepts. Automaton has 596102 states and 960306 transitions. Word has length 137 [2023-12-25 09:10:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:10:31,942 INFO L495 AbstractCegarLoop]: Abstraction has 596102 states and 960306 transitions. [2023-12-25 09:10:31,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 596102 states and 960306 transitions. [2023-12-25 09:10:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 09:10:32,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:10:32,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:10:32,023 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 (21)] Ended with exit code 0 [2023-12-25 09:10:32,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2023-12-25 09:10:32,223 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:10:32,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:10:32,223 INFO L85 PathProgramCache]: Analyzing trace with hash 40242465, now seen corresponding path program 1 times [2023-12-25 09:10:32,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:10:32,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864564548] [2023-12-25 09:10:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:10:32,224 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 [2023-12-25 09:10:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:10:32,225 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 09:10:32,226 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 (22)] Waiting until timeout for monitored process [2023-12-25 09:10:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:10:32,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:10:32,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:10:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:10:32,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:10:32,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:10:32,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864564548] [2023-12-25 09:10:32,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864564548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:10:32,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:10:32,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:10:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366549859] [2023-12-25 09:10:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:10:32,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:10:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:10:32,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:10:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:10:32,335 INFO L87 Difference]: Start difference. First operand 596102 states and 960306 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:10:37,804 INFO L93 Difference]: Finished difference Result 1192610 states and 1916640 transitions. [2023-12-25 09:10:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:10:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 09:10:37,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:10:40,406 INFO L225 Difference]: With dead ends: 1192610 [2023-12-25 09:10:40,407 INFO L226 Difference]: Without dead ends: 892026 [2023-12-25 09:10:40,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:10:40,600 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 509 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:10:40,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:10:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892026 states. [2023-12-25 09:10:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892026 to 596090. [2023-12-25 09:10:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596090 states, 596089 states have (on average 1.610970844957716) internal successors, (960282), 596089 states have internal predecessors, (960282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596090 states to 596090 states and 960282 transitions. [2023-12-25 09:10:52,314 INFO L78 Accepts]: Start accepts. Automaton has 596090 states and 960282 transitions. Word has length 137 [2023-12-25 09:10:52,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:10:52,315 INFO L495 AbstractCegarLoop]: Abstraction has 596090 states and 960282 transitions. [2023-12-25 09:10:52,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 596090 states and 960282 transitions. [2023-12-25 09:10:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 09:10:52,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:10:52,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:10:52,399 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 09:10:52,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 09:10:52,595 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:10:52,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:10:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1428366077, now seen corresponding path program 1 times [2023-12-25 09:10:52,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:10:52,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336139031] [2023-12-25 09:10:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:10:52,596 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 [2023-12-25 09:10:52,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:10:52,597 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) [2023-12-25 09:10:52,598 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 [2023-12-25 09:10:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:10:52,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:10:52,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:10:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:10:53,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:10:53,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:10:53,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336139031] [2023-12-25 09:10:53,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336139031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:10:53,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:10:53,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:10:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108735742] [2023-12-25 09:10:53,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:10:53,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:10:53,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:10:53,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:10:53,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:10:53,123 INFO L87 Difference]: Start difference. First operand 596090 states and 960282 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:10:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:10:57,308 INFO L93 Difference]: Finished difference Result 1065804 states and 1721643 transitions. [2023-12-25 09:10:57,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:10:57,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 09:10:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:10:58,877 INFO L225 Difference]: With dead ends: 1065804 [2023-12-25 09:10:58,877 INFO L226 Difference]: Without dead ends: 596090 [2023-12-25 09:10:59,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:10:59,646 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 628 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:10:59,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1011 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:11:00,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596090 states. [2023-12-25 09:11:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596090 to 596090. [2023-12-25 09:11:06,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596090 states, 596089 states have (on average 1.5987310619722894) internal successors, (952986), 596089 states have internal predecessors, (952986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596090 states to 596090 states and 952986 transitions. [2023-12-25 09:11:09,265 INFO L78 Accepts]: Start accepts. Automaton has 596090 states and 952986 transitions. Word has length 137 [2023-12-25 09:11:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:11:09,266 INFO L495 AbstractCegarLoop]: Abstraction has 596090 states and 952986 transitions. [2023-12-25 09:11:09,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 596090 states and 952986 transitions. [2023-12-25 09:11:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 09:11:09,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:11:09,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:11:09,343 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 [2023-12-25 09:11:09,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2023-12-25 09:11:09,541 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:11:09,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:11:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash -731138206, now seen corresponding path program 1 times [2023-12-25 09:11:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:11:09,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991304237] [2023-12-25 09:11:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:11:09,543 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 [2023-12-25 09:11:09,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:11:09,545 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 09:11:09,546 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 (24)] Waiting until timeout for monitored process [2023-12-25 09:11:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:11:09,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:11:09,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:11:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:11:09,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:11:09,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:11:09,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991304237] [2023-12-25 09:11:09,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991304237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:11:09,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:11:09,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:11:09,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313926131] [2023-12-25 09:11:09,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:11:09,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:11:09,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:11:09,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:11:09,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:11:09,810 INFO L87 Difference]: Start difference. First operand 596090 states and 952986 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:11:14,163 INFO L93 Difference]: Finished difference Result 1214898 states and 1939528 transitions. [2023-12-25 09:11:14,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:11:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 09:11:14,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:11:16,240 INFO L225 Difference]: With dead ends: 1214898 [2023-12-25 09:11:16,240 INFO L226 Difference]: Without dead ends: 625561 [2023-12-25 09:11:16,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:11:16,777 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 1221 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:11:16,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1114 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:11:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625561 states. [2023-12-25 09:11:24,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625561 to 598729. [2023-12-25 09:11:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598729 states, 598728 states have (on average 1.5976670541548081) internal successors, (956568), 598728 states have internal predecessors, (956568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598729 states to 598729 states and 956568 transitions. [2023-12-25 09:11:27,209 INFO L78 Accepts]: Start accepts. Automaton has 598729 states and 956568 transitions. Word has length 137 [2023-12-25 09:11:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:11:27,209 INFO L495 AbstractCegarLoop]: Abstraction has 598729 states and 956568 transitions. [2023-12-25 09:11:27,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 598729 states and 956568 transitions. [2023-12-25 09:11:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 09:11:27,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:11:27,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:11:27,292 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 (24)] Ended with exit code 0 [2023-12-25 09:11:27,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 09:11:27,490 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:11:27,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:11:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash 242827340, now seen corresponding path program 1 times [2023-12-25 09:11:27,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:11:27,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701748758] [2023-12-25 09:11:27,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:11:27,491 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 [2023-12-25 09:11:27,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:11:27,492 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) [2023-12-25 09:11:27,493 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 [2023-12-25 09:11:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:11:27,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:11:27,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:11:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:11:27,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:11:27,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:11:27,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701748758] [2023-12-25 09:11:27,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701748758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:11:27,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:11:27,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:11:27,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536229140] [2023-12-25 09:11:27,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:11:27,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:11:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:11:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:11:27,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:11:27,720 INFO L87 Difference]: Start difference. First operand 598729 states and 956568 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:11:34,945 INFO L93 Difference]: Finished difference Result 1759117 states and 2811016 transitions. [2023-12-25 09:11:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:11:34,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 09:11:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:11:38,766 INFO L225 Difference]: With dead ends: 1759117 [2023-12-25 09:11:38,766 INFO L226 Difference]: Without dead ends: 1166755 [2023-12-25 09:11:39,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:11:39,065 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 1138 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:11:39,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1167 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:11:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166755 states. [2023-12-25 09:11:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166755 to 1166753. [2023-12-25 09:11:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166753 states, 1166752 states have (on average 1.5861245577466334) internal successors, (1850614), 1166752 states have internal predecessors, (1850614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166753 states to 1166753 states and 1850614 transitions. [2023-12-25 09:11:59,821 INFO L78 Accepts]: Start accepts. Automaton has 1166753 states and 1850614 transitions. Word has length 139 [2023-12-25 09:11:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:11:59,822 INFO L495 AbstractCegarLoop]: Abstraction has 1166753 states and 1850614 transitions. [2023-12-25 09:11:59,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:11:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1166753 states and 1850614 transitions. [2023-12-25 09:12:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 09:12:00,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:12:00,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:12:00,421 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 [2023-12-25 09:12:00,620 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 [2023-12-25 09:12:00,620 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:12:00,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:12:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash -233393914, now seen corresponding path program 1 times [2023-12-25 09:12:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:12:00,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567570493] [2023-12-25 09:12:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:12:00,622 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 [2023-12-25 09:12:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:12:00,623 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) [2023-12-25 09:12:00,626 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 [2023-12-25 09:12:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:12:00,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:12:00,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:12:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:12:00,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:12:00,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:12:00,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567570493] [2023-12-25 09:12:00,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567570493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:12:00,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:12:00,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:12:00,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776316043] [2023-12-25 09:12:00,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:12:00,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:12:00,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:12:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:12:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:12:00,828 INFO L87 Difference]: Start difference. First operand 1166753 states and 1850614 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)