/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_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:31:04,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:31:04,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:31:04,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:31:04,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:31:04,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:31:04,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:31:04,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:31:04,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:31:04,431 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:31:04,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:31:04,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:31:04,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:31:04,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:31:04,434 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:31:04,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:31:04,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:31:04,435 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:31:04,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:31:04,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:31:04,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:31:04,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:31:04,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:31:04,436 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:31:04,436 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:31:04,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:31:04,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:31:04,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:31:04,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:31:04,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:31:04,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:31:04,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:31:04,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:31:04,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:31:04,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:31:04,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:31:04,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:31:04,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:31:04,440 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:31:04,440 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:31:04,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:31:04,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:31:04,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:31:04,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:31:04,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:31:04,442 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:31:04,442 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:31:04,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:31:04,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:31:04,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:31:04,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:31:04,707 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:31:04,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-16 18:31:05,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:31:06,102 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:31:06,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-16 18:31:06,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3728f3993/9a2bad7080564e5eb585719862c0e3b3/FLAG909bd7305 [2023-12-16 18:31:06,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3728f3993/9a2bad7080564e5eb585719862c0e3b3 [2023-12-16 18:31:06,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:31:06,136 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:31:06,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:31:06,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:31:06,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:31:06,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c841cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06, skipping insertion in model container [2023-12-16 18:31:06,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:31:06,431 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_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2023-12-16 18:31:06,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:31:06,491 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:31:06,551 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_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2023-12-16 18:31:06,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:31:06,602 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:31:06,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06 WrapperNode [2023-12-16 18:31:06,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:31:06,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:31:06,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:31:06,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:31:06,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,657 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 688 [2023-12-16 18:31:06,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:31:06,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:31:06,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:31:06,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:31:06,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,717 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 18:31:06,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:31:06,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:31:06,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:31:06,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:31:06,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (1/1) ... [2023-12-16 18:31:06,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:31:06,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:31:06,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 18:31:06,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 18:31:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:31:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:31:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:31:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:31:06,983 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:31:06,985 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:31:07,529 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:31:07,563 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:31:07,564 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 18:31:07,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:31:07 BoogieIcfgContainer [2023-12-16 18:31:07,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:31:07,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:31:07,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:31:07,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:31:07,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:31:06" (1/3) ... [2023-12-16 18:31:07,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fefd544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:31:07, skipping insertion in model container [2023-12-16 18:31:07,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:31:06" (2/3) ... [2023-12-16 18:31:07,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fefd544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:31:07, skipping insertion in model container [2023-12-16 18:31:07,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:31:07" (3/3) ... [2023-12-16 18:31:07,571 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-16 18:31:07,587 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:31:07,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:31:07,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:31:07,635 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;@e9019fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:31:07,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:31:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 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) [2023-12-16 18:31:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 18:31:07,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:07,656 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] [2023-12-16 18:31:07,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:07,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash 304652064, now seen corresponding path program 1 times [2023-12-16 18:31:07,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:07,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103230420] [2023-12-16 18:31:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:07,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:07,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:07,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:31:07,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:31:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:07,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:07,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:08,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:08,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:08,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103230420] [2023-12-16 18:31:08,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103230420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:08,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:08,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:08,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011163713] [2023-12-16 18:31:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:08,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:08,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:08,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:08,093 INFO L87 Difference]: Start difference. First operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 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 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-16 18:31:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:08,168 INFO L93 Difference]: Finished difference Result 331 states and 550 transitions. [2023-12-16 18:31:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:08,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2023-12-16 18:31:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:08,187 INFO L225 Difference]: With dead ends: 331 [2023-12-16 18:31:08,187 INFO L226 Difference]: Without dead ends: 235 [2023-12-16 18:31:08,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:08,195 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 192 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:08,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 537 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-16 18:31:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2023-12-16 18:31:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 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) [2023-12-16 18:31:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2023-12-16 18:31:08,234 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 100 [2023-12-16 18:31:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:08,235 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2023-12-16 18:31:08,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-16 18:31:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2023-12-16 18:31:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 18:31:08,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:08,238 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] [2023-12-16 18:31:08,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:08,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:08,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:08,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash -483910651, now seen corresponding path program 1 times [2023-12-16 18:31:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160727085] [2023-12-16 18:31:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:08,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:08,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:08,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:31:08,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:31:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:08,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:08,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:09,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:09,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160727085] [2023-12-16 18:31:09,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160727085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:09,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:09,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:09,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590924440] [2023-12-16 18:31:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:09,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:09,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:09,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:09,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:09,397 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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) [2023-12-16 18:31:09,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:09,732 INFO L93 Difference]: Finished difference Result 573 states and 876 transitions. [2023-12-16 18:31:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:09,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 101 [2023-12-16 18:31:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:09,736 INFO L225 Difference]: With dead ends: 573 [2023-12-16 18:31:09,736 INFO L226 Difference]: Without dead ends: 403 [2023-12-16 18:31:09,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:09,738 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 765 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:09,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 205 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 18:31:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-12-16 18:31:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 401. [2023-12-16 18:31:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.5075) internal successors, (603), 400 states have internal predecessors, (603), 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) [2023-12-16 18:31:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 603 transitions. [2023-12-16 18:31:09,770 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 603 transitions. Word has length 101 [2023-12-16 18:31:09,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:09,772 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 603 transitions. [2023-12-16 18:31:09,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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) [2023-12-16 18:31:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 603 transitions. [2023-12-16 18:31:09,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 18:31:09,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:09,779 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] [2023-12-16 18:31:09,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:09,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:09,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:09,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2069639530, now seen corresponding path program 1 times [2023-12-16 18:31:09,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013965238] [2023-12-16 18:31:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:09,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:09,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:09,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:31:09,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:31:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:10,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:10,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:10,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:10,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013965238] [2023-12-16 18:31:10,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013965238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:10,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174196942] [2023-12-16 18:31:10,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:10,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:10,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:10,203 INFO L87 Difference]: Start difference. First operand 401 states and 603 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-16 18:31:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:10,238 INFO L93 Difference]: Finished difference Result 1045 states and 1631 transitions. [2023-12-16 18:31:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:10,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2023-12-16 18:31:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:10,242 INFO L225 Difference]: With dead ends: 1045 [2023-12-16 18:31:10,243 INFO L226 Difference]: Without dead ends: 707 [2023-12-16 18:31:10,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:10,249 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 128 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 465 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 [2023-12-16 18:31:10,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 465 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:10,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-12-16 18:31:10,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 705. [2023-12-16 18:31:10,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.5426136363636365) internal successors, (1086), 704 states have internal predecessors, (1086), 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) [2023-12-16 18:31:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1086 transitions. [2023-12-16 18:31:10,287 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1086 transitions. Word has length 101 [2023-12-16 18:31:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:10,289 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 1086 transitions. [2023-12-16 18:31:10,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-16 18:31:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1086 transitions. [2023-12-16 18:31:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 18:31:10,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:10,296 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] [2023-12-16 18:31:10,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 18:31:10,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:10,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:10,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -990812950, now seen corresponding path program 1 times [2023-12-16 18:31:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:10,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70269992] [2023-12-16 18:31:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:10,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:10,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:10,503 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:31:10,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:31:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:10,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:10,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:11,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:11,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:11,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70269992] [2023-12-16 18:31:11,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70269992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:11,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:11,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121060346] [2023-12-16 18:31:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:11,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:11,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:11,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:11,182 INFO L87 Difference]: Start difference. First operand 705 states and 1086 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2023-12-16 18:31:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:11,327 INFO L93 Difference]: Finished difference Result 1347 states and 2109 transitions. [2023-12-16 18:31:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:11,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2023-12-16 18:31:11,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:11,333 INFO L225 Difference]: With dead ends: 1347 [2023-12-16 18:31:11,333 INFO L226 Difference]: Without dead ends: 705 [2023-12-16 18:31:11,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:11,340 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 331 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:11,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 139 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:31:11,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-12-16 18:31:11,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2023-12-16 18:31:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.5369318181818181) internal successors, (1082), 704 states have internal predecessors, (1082), 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) [2023-12-16 18:31:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1082 transitions. [2023-12-16 18:31:11,359 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1082 transitions. Word has length 102 [2023-12-16 18:31:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:11,360 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 1082 transitions. [2023-12-16 18:31:11,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2023-12-16 18:31:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1082 transitions. [2023-12-16 18:31:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 18:31:11,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:11,362 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] [2023-12-16 18:31:11,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:11,565 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 [2023-12-16 18:31:11,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:11,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1835660495, now seen corresponding path program 1 times [2023-12-16 18:31:11,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:11,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094116642] [2023-12-16 18:31:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:11,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:11,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:11,568 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) [2023-12-16 18:31:11,569 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 [2023-12-16 18:31:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:11,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:11,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:11,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:11,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:11,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094116642] [2023-12-16 18:31:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094116642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:11,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454184463] [2023-12-16 18:31:11,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:11,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:11,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:11,772 INFO L87 Difference]: Start difference. First operand 705 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-16 18:31:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:11,802 INFO L93 Difference]: Finished difference Result 1925 states and 3016 transitions. [2023-12-16 18:31:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-12-16 18:31:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:11,807 INFO L225 Difference]: With dead ends: 1925 [2023-12-16 18:31:11,807 INFO L226 Difference]: Without dead ends: 1283 [2023-12-16 18:31:11,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:11,809 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 122 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 459 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 [2023-12-16 18:31:11,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 459 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:11,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2023-12-16 18:31:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1281. [2023-12-16 18:31:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.553125) internal successors, (1988), 1280 states have internal predecessors, (1988), 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) [2023-12-16 18:31:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1988 transitions. [2023-12-16 18:31:11,840 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1988 transitions. Word has length 102 [2023-12-16 18:31:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:11,840 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 1988 transitions. [2023-12-16 18:31:11,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-16 18:31:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1988 transitions. [2023-12-16 18:31:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 18:31:11,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:11,849 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] [2023-12-16 18:31:11,859 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 [2023-12-16 18:31:12,052 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 [2023-12-16 18:31:12,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:12,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:12,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1584574752, now seen corresponding path program 1 times [2023-12-16 18:31:12,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:12,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219256551] [2023-12-16 18:31:12,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:12,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:12,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:31:12,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:31:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:12,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:12,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:12,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:12,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:12,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219256551] [2023-12-16 18:31:12,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219256551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:12,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:12,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961592433] [2023-12-16 18:31:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:12,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:12,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:12,678 INFO L87 Difference]: Start difference. First operand 1281 states and 1988 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2023-12-16 18:31:12,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:12,821 INFO L93 Difference]: Finished difference Result 2499 states and 3913 transitions. [2023-12-16 18:31:12,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:12,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2023-12-16 18:31:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:12,826 INFO L225 Difference]: With dead ends: 2499 [2023-12-16 18:31:12,826 INFO L226 Difference]: Without dead ends: 1281 [2023-12-16 18:31:12,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:12,828 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 449 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:12,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 147 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:31:12,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2023-12-16 18:31:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1281. [2023-12-16 18:31:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.546875) internal successors, (1980), 1280 states have internal predecessors, (1980), 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) [2023-12-16 18:31:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1980 transitions. [2023-12-16 18:31:12,851 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1980 transitions. Word has length 103 [2023-12-16 18:31:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:12,851 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 1980 transitions. [2023-12-16 18:31:12,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2023-12-16 18:31:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1980 transitions. [2023-12-16 18:31:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 18:31:12,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:12,853 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] [2023-12-16 18:31:12,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:13,056 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 [2023-12-16 18:31:13,056 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:13,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1383007355, now seen corresponding path program 1 times [2023-12-16 18:31:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:13,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795066166] [2023-12-16 18:31:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:13,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:13,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:13,059 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) [2023-12-16 18:31:13,061 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 [2023-12-16 18:31:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:13,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:13,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:13,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:13,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:13,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795066166] [2023-12-16 18:31:13,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795066166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:13,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:13,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:13,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352844629] [2023-12-16 18:31:13,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:13,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:13,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:13,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:13,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:13,267 INFO L87 Difference]: Start difference. First operand 1281 states and 1980 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-12-16 18:31:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:13,306 INFO L93 Difference]: Finished difference Result 3589 states and 5606 transitions. [2023-12-16 18:31:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:13,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2023-12-16 18:31:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:13,316 INFO L225 Difference]: With dead ends: 3589 [2023-12-16 18:31:13,316 INFO L226 Difference]: Without dead ends: 2371 [2023-12-16 18:31:13,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:13,320 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 116 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 453 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 [2023-12-16 18:31:13,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2023-12-16 18:31:13,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2369. [2023-12-16 18:31:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2368 states have (on average 1.5506756756756757) internal successors, (3672), 2368 states have internal predecessors, (3672), 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) [2023-12-16 18:31:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 3672 transitions. [2023-12-16 18:31:13,370 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 3672 transitions. Word has length 103 [2023-12-16 18:31:13,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:13,370 INFO L495 AbstractCegarLoop]: Abstraction has 2369 states and 3672 transitions. [2023-12-16 18:31:13,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-12-16 18:31:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 3672 transitions. [2023-12-16 18:31:13,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 18:31:13,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:13,372 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] [2023-12-16 18:31:13,378 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 [2023-12-16 18:31:13,575 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 [2023-12-16 18:31:13,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:13,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2140160305, now seen corresponding path program 1 times [2023-12-16 18:31:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:13,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609698330] [2023-12-16 18:31:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:13,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:13,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:13,578 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) [2023-12-16 18:31:13,580 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 [2023-12-16 18:31:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:13,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:13,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:14,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:14,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:14,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609698330] [2023-12-16 18:31:14,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609698330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:14,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:14,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:14,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90786306] [2023-12-16 18:31:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:14,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:14,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:14,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:14,161 INFO L87 Difference]: Start difference. First operand 2369 states and 3672 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-12-16 18:31:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:14,296 INFO L93 Difference]: Finished difference Result 4675 states and 7281 transitions. [2023-12-16 18:31:14,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:14,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 104 [2023-12-16 18:31:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:14,305 INFO L225 Difference]: With dead ends: 4675 [2023-12-16 18:31:14,305 INFO L226 Difference]: Without dead ends: 2369 [2023-12-16 18:31:14,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:14,311 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 309 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:14,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 155 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:31:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2023-12-16 18:31:14,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2369. [2023-12-16 18:31:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2368 states have (on average 1.5439189189189189) internal successors, (3656), 2368 states have internal predecessors, (3656), 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) [2023-12-16 18:31:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 3656 transitions. [2023-12-16 18:31:14,363 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 3656 transitions. Word has length 104 [2023-12-16 18:31:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:14,363 INFO L495 AbstractCegarLoop]: Abstraction has 2369 states and 3656 transitions. [2023-12-16 18:31:14,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-12-16 18:31:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 3656 transitions. [2023-12-16 18:31:14,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 18:31:14,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:14,365 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] [2023-12-16 18:31:14,371 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 [2023-12-16 18:31:14,568 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 [2023-12-16 18:31:14,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:14,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash -296385002, now seen corresponding path program 1 times [2023-12-16 18:31:14,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:14,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923128340] [2023-12-16 18:31:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:14,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:14,570 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) [2023-12-16 18:31:14,571 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 [2023-12-16 18:31:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:14,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:14,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:14,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:14,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923128340] [2023-12-16 18:31:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923128340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:14,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:14,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:14,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061994209] [2023-12-16 18:31:14,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:14,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:14,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:14,775 INFO L87 Difference]: Start difference. First operand 2369 states and 3656 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-12-16 18:31:14,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:14,815 INFO L93 Difference]: Finished difference Result 6725 states and 10426 transitions. [2023-12-16 18:31:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:14,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2023-12-16 18:31:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:14,830 INFO L225 Difference]: With dead ends: 6725 [2023-12-16 18:31:14,830 INFO L226 Difference]: Without dead ends: 4419 [2023-12-16 18:31:14,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:14,834 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 110 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 447 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 [2023-12-16 18:31:14,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 447 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states. [2023-12-16 18:31:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 4417. [2023-12-16 18:31:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4416 states have (on average 1.539855072463768) internal successors, (6800), 4416 states have internal predecessors, (6800), 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) [2023-12-16 18:31:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6800 transitions. [2023-12-16 18:31:14,917 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6800 transitions. Word has length 104 [2023-12-16 18:31:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:14,918 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 6800 transitions. [2023-12-16 18:31:14,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-12-16 18:31:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6800 transitions. [2023-12-16 18:31:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 18:31:14,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:14,919 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] [2023-12-16 18:31:14,923 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 [2023-12-16 18:31:15,122 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 [2023-12-16 18:31:15,123 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:15,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2126155464, now seen corresponding path program 1 times [2023-12-16 18:31:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88168538] [2023-12-16 18:31:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:15,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:15,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:15,126 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) [2023-12-16 18:31:15,132 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 [2023-12-16 18:31:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:15,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:15,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:15,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:15,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:15,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88168538] [2023-12-16 18:31:15,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88168538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:15,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:15,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:15,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006278536] [2023-12-16 18:31:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:15,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:15,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:15,333 INFO L87 Difference]: Start difference. First operand 4417 states and 6800 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2023-12-16 18:31:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:15,389 INFO L93 Difference]: Finished difference Result 12613 states and 19442 transitions. [2023-12-16 18:31:15,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:15,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2023-12-16 18:31:15,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:15,416 INFO L225 Difference]: With dead ends: 12613 [2023-12-16 18:31:15,417 INFO L226 Difference]: Without dead ends: 8259 [2023-12-16 18:31:15,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:15,424 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 105 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 443 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 [2023-12-16 18:31:15,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 443 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:15,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8259 states. [2023-12-16 18:31:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8259 to 8257. [2023-12-16 18:31:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8257 states, 8256 states have (on average 1.5310077519379846) internal successors, (12640), 8256 states have internal predecessors, (12640), 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) [2023-12-16 18:31:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8257 states to 8257 states and 12640 transitions. [2023-12-16 18:31:15,660 INFO L78 Accepts]: Start accepts. Automaton has 8257 states and 12640 transitions. Word has length 105 [2023-12-16 18:31:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:15,661 INFO L495 AbstractCegarLoop]: Abstraction has 8257 states and 12640 transitions. [2023-12-16 18:31:15,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2023-12-16 18:31:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8257 states and 12640 transitions. [2023-12-16 18:31:15,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 18:31:15,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:15,662 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] [2023-12-16 18:31:15,671 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 [2023-12-16 18:31:15,865 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 [2023-12-16 18:31:15,865 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:15,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2787600, now seen corresponding path program 1 times [2023-12-16 18:31:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:15,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569418574] [2023-12-16 18:31:15,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:15,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:15,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:15,868 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) [2023-12-16 18:31:15,901 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 [2023-12-16 18:31:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:15,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:15,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:16,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:16,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:16,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569418574] [2023-12-16 18:31:16,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569418574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:16,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:16,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714900623] [2023-12-16 18:31:16,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:16,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:16,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:16,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:16,500 INFO L87 Difference]: Start difference. First operand 8257 states and 12640 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 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) [2023-12-16 18:31:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:16,680 INFO L93 Difference]: Finished difference Result 16451 states and 25217 transitions. [2023-12-16 18:31:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:16,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 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 106 [2023-12-16 18:31:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:16,717 INFO L225 Difference]: With dead ends: 16451 [2023-12-16 18:31:16,717 INFO L226 Difference]: Without dead ends: 8257 [2023-12-16 18:31:16,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:16,730 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 401 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:16,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 171 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:31:16,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8257 states. [2023-12-16 18:31:16,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8257 to 8257. [2023-12-16 18:31:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8257 states, 8256 states have (on average 1.5232558139534884) internal successors, (12576), 8256 states have internal predecessors, (12576), 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) [2023-12-16 18:31:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8257 states to 8257 states and 12576 transitions. [2023-12-16 18:31:16,881 INFO L78 Accepts]: Start accepts. Automaton has 8257 states and 12576 transitions. Word has length 106 [2023-12-16 18:31:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:16,881 INFO L495 AbstractCegarLoop]: Abstraction has 8257 states and 12576 transitions. [2023-12-16 18:31:16,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 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) [2023-12-16 18:31:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8257 states and 12576 transitions. [2023-12-16 18:31:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 18:31:16,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:16,883 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] [2023-12-16 18:31:16,889 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 [2023-12-16 18:31:17,086 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 [2023-12-16 18:31:17,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:17,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:17,087 INFO L85 PathProgramCache]: Analyzing trace with hash 868319989, now seen corresponding path program 1 times [2023-12-16 18:31:17,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:17,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458059568] [2023-12-16 18:31:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:17,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:17,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:17,089 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) [2023-12-16 18:31:17,116 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 [2023-12-16 18:31:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:17,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:17,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:17,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:17,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:17,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458059568] [2023-12-16 18:31:17,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458059568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:17,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:17,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:17,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717963987] [2023-12-16 18:31:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:17,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:17,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:17,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:17,276 INFO L87 Difference]: Start difference. First operand 8257 states and 12576 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2023-12-16 18:31:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:17,342 INFO L93 Difference]: Finished difference Result 23621 states and 35938 transitions. [2023-12-16 18:31:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:17,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2023-12-16 18:31:17,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:17,375 INFO L225 Difference]: With dead ends: 23621 [2023-12-16 18:31:17,376 INFO L226 Difference]: Without dead ends: 15427 [2023-12-16 18:31:17,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:17,388 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 99 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 437 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 [2023-12-16 18:31:17,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 437 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15427 states. [2023-12-16 18:31:17,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15427 to 15425. [2023-12-16 18:31:17,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15425 states, 15424 states have (on average 1.5103734439834025) internal successors, (23296), 15424 states have internal predecessors, (23296), 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) [2023-12-16 18:31:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15425 states to 15425 states and 23296 transitions. [2023-12-16 18:31:17,677 INFO L78 Accepts]: Start accepts. Automaton has 15425 states and 23296 transitions. Word has length 106 [2023-12-16 18:31:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:17,678 INFO L495 AbstractCegarLoop]: Abstraction has 15425 states and 23296 transitions. [2023-12-16 18:31:17,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2023-12-16 18:31:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 15425 states and 23296 transitions. [2023-12-16 18:31:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 18:31:17,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:17,679 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] [2023-12-16 18:31:17,684 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 [2023-12-16 18:31:17,882 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 [2023-12-16 18:31:17,882 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:17,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash 559792771, now seen corresponding path program 1 times [2023-12-16 18:31:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:17,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487125489] [2023-12-16 18:31:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:17,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:17,885 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) [2023-12-16 18:31:17,890 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 [2023-12-16 18:31:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:17,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:17,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:18,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:18,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487125489] [2023-12-16 18:31:18,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487125489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:18,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:18,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:18,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229477192] [2023-12-16 18:31:18,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:18,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:18,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:18,092 INFO L87 Difference]: Start difference. First operand 15425 states and 23296 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2023-12-16 18:31:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:18,201 INFO L93 Difference]: Finished difference Result 44101 states and 66434 transitions. [2023-12-16 18:31:18,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:18,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2023-12-16 18:31:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:18,254 INFO L225 Difference]: With dead ends: 44101 [2023-12-16 18:31:18,254 INFO L226 Difference]: Without dead ends: 28739 [2023-12-16 18:31:18,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:18,277 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 94 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 433 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 [2023-12-16 18:31:18,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 433 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28739 states. [2023-12-16 18:31:18,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28739 to 28737. [2023-12-16 18:31:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.4944320712694878) internal successors, (42944), 28736 states have internal predecessors, (42944), 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) [2023-12-16 18:31:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 42944 transitions. [2023-12-16 18:31:18,793 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 42944 transitions. Word has length 107 [2023-12-16 18:31:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:18,794 INFO L495 AbstractCegarLoop]: Abstraction has 28737 states and 42944 transitions. [2023-12-16 18:31:18,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2023-12-16 18:31:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 42944 transitions. [2023-12-16 18:31:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 18:31:18,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:18,795 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] [2023-12-16 18:31:18,801 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:18,999 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 [2023-12-16 18:31:18,999 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:18,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:19,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1214354297, now seen corresponding path program 1 times [2023-12-16 18:31:19,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:19,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337791085] [2023-12-16 18:31:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:19,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:19,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:19,104 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) [2023-12-16 18:31:19,106 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 [2023-12-16 18:31:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:19,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:31:19,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:19,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:19,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337791085] [2023-12-16 18:31:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337791085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:19,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:19,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073981395] [2023-12-16 18:31:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:31:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:31:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:19,836 INFO L87 Difference]: Start difference. First operand 28737 states and 42944 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-12-16 18:31:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:20,129 INFO L93 Difference]: Finished difference Result 57411 states and 85825 transitions. [2023-12-16 18:31:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:20,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 108 [2023-12-16 18:31:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:20,171 INFO L225 Difference]: With dead ends: 57411 [2023-12-16 18:31:20,171 INFO L226 Difference]: Without dead ends: 28737 [2023-12-16 18:31:20,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:31:20,200 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 370 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:20,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 187 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:31:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28737 states. [2023-12-16 18:31:20,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28737 to 28737. [2023-12-16 18:31:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.4855233853006682) internal successors, (42688), 28736 states have internal predecessors, (42688), 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) [2023-12-16 18:31:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 42688 transitions. [2023-12-16 18:31:20,669 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 42688 transitions. Word has length 108 [2023-12-16 18:31:20,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:20,669 INFO L495 AbstractCegarLoop]: Abstraction has 28737 states and 42688 transitions. [2023-12-16 18:31:20,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-12-16 18:31:20,669 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 42688 transitions. [2023-12-16 18:31:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 18:31:20,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:20,758 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] [2023-12-16 18:31:20,780 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 [2023-12-16 18:31:20,958 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 [2023-12-16 18:31:20,959 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:20,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 59513708, now seen corresponding path program 1 times [2023-12-16 18:31:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:20,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114678621] [2023-12-16 18:31:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:20,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:20,961 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) [2023-12-16 18:31:20,979 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 [2023-12-16 18:31:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:21,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:31:21,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:23,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:23,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114678621] [2023-12-16 18:31:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114678621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:23,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 18:31:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120584847] [2023-12-16 18:31:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:23,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 18:31:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 18:31:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:31:23,013 INFO L87 Difference]: Start difference. First operand 28737 states and 42688 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2023-12-16 18:31:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:23,939 INFO L93 Difference]: Finished difference Result 286803 states and 426313 transitions. [2023-12-16 18:31:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:31:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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 108 [2023-12-16 18:31:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:24,724 INFO L225 Difference]: With dead ends: 286803 [2023-12-16 18:31:24,724 INFO L226 Difference]: Without dead ends: 258129 [2023-12-16 18:31:24,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:31:24,859 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1524 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:24,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1636 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:31:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258129 states. [2023-12-16 18:31:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258129 to 86081. [2023-12-16 18:31:27,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86081 states, 86080 states have (on average 1.4684014869888475) internal successors, (126400), 86080 states have internal predecessors, (126400), 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) [2023-12-16 18:31:27,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86081 states to 86081 states and 126400 transitions. [2023-12-16 18:31:27,585 INFO L78 Accepts]: Start accepts. Automaton has 86081 states and 126400 transitions. Word has length 108 [2023-12-16 18:31:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:27,586 INFO L495 AbstractCegarLoop]: Abstraction has 86081 states and 126400 transitions. [2023-12-16 18:31:27,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2023-12-16 18:31:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 86081 states and 126400 transitions. [2023-12-16 18:31:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 18:31:27,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:27,588 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] [2023-12-16 18:31:27,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 18:31:27,799 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 [2023-12-16 18:31:27,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:27,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 436281736, now seen corresponding path program 1 times [2023-12-16 18:31:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099819882] [2023-12-16 18:31:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:27,802 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) [2023-12-16 18:31:27,804 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 [2023-12-16 18:31:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:27,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:31:27,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:28,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:28,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:28,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099819882] [2023-12-16 18:31:28,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099819882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:28,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:28,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:31:28,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521453817] [2023-12-16 18:31:28,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:28,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:31:28,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:28,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:31:28,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:31:28,053 INFO L87 Difference]: Start difference. First operand 86081 states and 126400 transitions. 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) [2023-12-16 18:31:28,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:28,706 INFO L93 Difference]: Finished difference Result 193095 states and 283140 transitions. [2023-12-16 18:31:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:31:28,720 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 [2023-12-16 18:31:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:28,847 INFO L225 Difference]: With dead ends: 193095 [2023-12-16 18:31:28,847 INFO L226 Difference]: Without dead ends: 107077 [2023-12-16 18:31:28,881 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 [2023-12-16 18:31:28,881 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 83 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:28,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 388 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107077 states. [2023-12-16 18:31:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107077 to 107075. [2023-12-16 18:31:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107075 states, 107074 states have (on average 1.4584492967480434) internal successors, (156162), 107074 states have internal predecessors, (156162), 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) [2023-12-16 18:31:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107075 states to 107075 states and 156162 transitions. [2023-12-16 18:31:30,585 INFO L78 Accepts]: Start accepts. Automaton has 107075 states and 156162 transitions. Word has length 110 [2023-12-16 18:31:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:30,585 INFO L495 AbstractCegarLoop]: Abstraction has 107075 states and 156162 transitions. [2023-12-16 18:31:30,585 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) [2023-12-16 18:31:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 107075 states and 156162 transitions. [2023-12-16 18:31:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 18:31:30,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:30,586 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] [2023-12-16 18:31:30,592 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 [2023-12-16 18:31:30,792 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 [2023-12-16 18:31:30,793 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:30,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:30,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1289005007, now seen corresponding path program 1 times [2023-12-16 18:31:30,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:30,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893620489] [2023-12-16 18:31:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:30,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:30,795 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) [2023-12-16 18:31:30,798 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 [2023-12-16 18:31:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:30,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:31:30,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:30,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:31:30,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:30,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893620489] [2023-12-16 18:31:30,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893620489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:31:30,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:31:30,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:31:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266365109] [2023-12-16 18:31:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:31:30,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:31:30,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:31:30,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:31:30,975 INFO L87 Difference]: Start difference. First operand 107075 states and 156162 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2023-12-16 18:31:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:31,768 INFO L93 Difference]: Finished difference Result 204151 states and 296703 transitions. [2023-12-16 18:31:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:31:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 111 [2023-12-16 18:31:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:32,044 INFO L225 Difference]: With dead ends: 204151 [2023-12-16 18:31:32,044 INFO L226 Difference]: Without dead ends: 204149 [2023-12-16 18:31:32,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:31:32,101 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 260 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:32,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 656 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:31:32,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204149 states. [2023-12-16 18:31:34,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204149 to 110403. [2023-12-16 18:31:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110403 states, 110402 states have (on average 1.4434702269886415) internal successors, (159362), 110402 states have internal predecessors, (159362), 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) [2023-12-16 18:31:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110403 states to 110403 states and 159362 transitions. [2023-12-16 18:31:34,425 INFO L78 Accepts]: Start accepts. Automaton has 110403 states and 159362 transitions. Word has length 111 [2023-12-16 18:31:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:34,426 INFO L495 AbstractCegarLoop]: Abstraction has 110403 states and 159362 transitions. [2023-12-16 18:31:34,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2023-12-16 18:31:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 110403 states and 159362 transitions. [2023-12-16 18:31:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 18:31:34,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:34,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:31:34,450 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 [2023-12-16 18:31:34,647 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 [2023-12-16 18:31:34,648 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:34,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:34,648 INFO L85 PathProgramCache]: Analyzing trace with hash -558287503, now seen corresponding path program 1 times [2023-12-16 18:31:34,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:34,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050494556] [2023-12-16 18:31:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:34,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:34,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:34,650 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) [2023-12-16 18:31:34,668 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 [2023-12-16 18:31:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:34,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:31:34,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:35,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:31:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:36,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:36,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050494556] [2023-12-16 18:31:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050494556] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:31:36,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:31:36,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:31:36,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224460888] [2023-12-16 18:31:36,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:31:36,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:31:36,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:31:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:31:36,168 INFO L87 Difference]: Start difference. First operand 110403 states and 159362 transitions. Second operand has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 states have internal predecessors, (262), 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) [2023-12-16 18:31:39,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:39,732 INFO L93 Difference]: Finished difference Result 365761 states and 524927 transitions. [2023-12-16 18:31:39,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-16 18:31:39,732 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 states have internal predecessors, (262), 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 149 [2023-12-16 18:31:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:40,351 INFO L225 Difference]: With dead ends: 365761 [2023-12-16 18:31:40,351 INFO L226 Difference]: Without dead ends: 276671 [2023-12-16 18:31:40,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=638, Invalid=1912, Unknown=0, NotChecked=0, Total=2550 [2023-12-16 18:31:40,421 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 2634 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:40,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2634 Valid, 1449 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 18:31:40,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276671 states. [2023-12-16 18:31:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276671 to 110403. [2023-12-16 18:31:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110403 states, 110402 states have (on average 1.439992029129907) internal successors, (158978), 110402 states have internal predecessors, (158978), 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) [2023-12-16 18:31:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110403 states to 110403 states and 158978 transitions. [2023-12-16 18:31:42,864 INFO L78 Accepts]: Start accepts. Automaton has 110403 states and 158978 transitions. Word has length 149 [2023-12-16 18:31:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:42,864 INFO L495 AbstractCegarLoop]: Abstraction has 110403 states and 158978 transitions. [2023-12-16 18:31:42,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 states have internal predecessors, (262), 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) [2023-12-16 18:31:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 110403 states and 158978 transitions. [2023-12-16 18:31:42,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 18:31:42,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:42,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:31:42,932 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 [2023-12-16 18:31:43,120 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 [2023-12-16 18:31:43,120 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:43,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash -646908821, now seen corresponding path program 1 times [2023-12-16 18:31:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429955131] [2023-12-16 18:31:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:43,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:43,122 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) [2023-12-16 18:31:43,123 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 [2023-12-16 18:31:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:43,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:31:43,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:44,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:31:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:44,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:44,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429955131] [2023-12-16 18:31:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429955131] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:31:44,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:31:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:31:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880777519] [2023-12-16 18:31:44,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:31:44,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:31:44,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:44,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:31:44,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:31:44,655 INFO L87 Difference]: Start difference. First operand 110403 states and 158978 transitions. Second operand has 16 states, 16 states have (on average 16.75) internal successors, (268), 15 states have internal predecessors, (268), 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) [2023-12-16 18:31:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:31:51,787 INFO L93 Difference]: Finished difference Result 572106 states and 815750 transitions. [2023-12-16 18:31:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-12-16 18:31:51,787 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.75) internal successors, (268), 15 states have internal predecessors, (268), 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 149 [2023-12-16 18:31:51,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:31:52,588 INFO L225 Difference]: With dead ends: 572106 [2023-12-16 18:31:52,588 INFO L226 Difference]: Without dead ends: 461768 [2023-12-16 18:31:52,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3666 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2242, Invalid=7858, Unknown=0, NotChecked=0, Total=10100 [2023-12-16 18:31:52,709 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 7950 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7950 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:31:52,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7950 Valid, 2274 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 18:31:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461768 states. [2023-12-16 18:31:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461768 to 112899. [2023-12-16 18:31:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112899 states, 112898 states have (on average 1.4319651366720403) internal successors, (161666), 112898 states have internal predecessors, (161666), 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) [2023-12-16 18:31:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112899 states to 112899 states and 161666 transitions. [2023-12-16 18:31:55,958 INFO L78 Accepts]: Start accepts. Automaton has 112899 states and 161666 transitions. Word has length 149 [2023-12-16 18:31:55,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:31:55,958 INFO L495 AbstractCegarLoop]: Abstraction has 112899 states and 161666 transitions. [2023-12-16 18:31:55,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.75) internal successors, (268), 15 states have internal predecessors, (268), 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) [2023-12-16 18:31:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand 112899 states and 161666 transitions. [2023-12-16 18:31:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 18:31:55,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:31:55,970 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:31:55,973 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 [2023-12-16 18:31:56,170 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 [2023-12-16 18:31:56,171 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:31:56,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:31:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1440496431, now seen corresponding path program 1 times [2023-12-16 18:31:56,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:31:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967537250] [2023-12-16 18:31:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:31:56,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:31:56,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:31:56,173 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) [2023-12-16 18:31:56,173 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 [2023-12-16 18:31:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:31:56,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:31:56,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:31:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:57,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:31:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:31:57,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:31:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967537250] [2023-12-16 18:31:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967537250] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:31:57,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:31:57,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:31:57,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763387670] [2023-12-16 18:31:57,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:31:57,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:31:57,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:31:57,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:31:57,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:31:57,677 INFO L87 Difference]: Start difference. First operand 112899 states and 161666 transitions. Second operand has 16 states, 16 states have (on average 17.125) internal successors, (274), 15 states have internal predecessors, (274), 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) Received shutdown request... [2023-12-16 18:32:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-16 18:32:01,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=915, Invalid=2745, Unknown=0, NotChecked=0, Total=3660 [2023-12-16 18:32:01,702 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 3541 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:32:01,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 1909 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 18:32:01,703 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:32:01,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 18:32:01,730 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:32:01,730 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:32:01,906 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 [2023-12-16 18:32:01,907 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (112899states) and FLOYD_HOARE automaton (currently 47 states, 16 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 61 known predicates. [2023-12-16 18:32:01,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:32:01,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:32:01,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:32:01 BoogieIcfgContainer [2023-12-16 18:32:01,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:32:01,915 INFO L158 Benchmark]: Toolchain (without parser) took 55779.58ms. Allocated memory was 323.0MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 268.9MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-16 18:32:01,915 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 208.7MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:32:01,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.89ms. Allocated memory is still 323.0MB. Free memory was 268.9MB in the beginning and 246.2MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 18:32:01,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.92ms. Allocated memory is still 323.0MB. Free memory was 246.2MB in the beginning and 242.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 18:32:01,916 INFO L158 Benchmark]: Boogie Preprocessor took 100.48ms. Allocated memory is still 323.0MB. Free memory was 242.7MB in the beginning and 238.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 18:32:01,916 INFO L158 Benchmark]: RCFGBuilder took 804.47ms. Allocated memory is still 323.0MB. Free memory was 238.5MB in the beginning and 260.0MB in the end (delta: -21.5MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. [2023-12-16 18:32:01,917 INFO L158 Benchmark]: TraceAbstraction took 54348.73ms. Allocated memory was 323.0MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 259.0MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-16 18:32:01,918 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 208.7MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 466.89ms. Allocated memory is still 323.0MB. Free memory was 268.9MB in the beginning and 246.2MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.92ms. Allocated memory is still 323.0MB. Free memory was 246.2MB in the beginning and 242.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 100.48ms. Allocated memory is still 323.0MB. Free memory was 242.7MB in the beginning and 238.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 804.47ms. Allocated memory is still 323.0MB. Free memory was 238.5MB in the beginning and 260.0MB in the end (delta: -21.5MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. * TraceAbstraction took 54348.73ms. Allocated memory was 323.0MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 259.0MB in the beginning and 4.7GB in the end (delta: -4.5GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 444]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 444). Cancelled while NwaCegarLoop was constructing difference of abstraction (112899states) and FLOYD_HOARE automaton (currently 47 states, 16 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 61 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 155 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.3s, OverallIterations: 20, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19583 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19583 mSDsluCounter, 12990 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8189 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5770 IncrementalHoareTripleChecker+Invalid, 5840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 4801 mSDtfsCounter, 5770 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2828 GetRequests, 2576 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5200 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112899occurred in iteration=19, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 780951 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 2229 NumberOfCodeBlocks, 2229 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2654 ConstructedInterpolants, 737 QuantifiedInterpolants, 22422 SizeOfPredicates, 43 NumberOfNonLiveVariables, 4645 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 23 InterpolantComputations, 17 PerfectInterpolantSequences, 96/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown