/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/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:45:24,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:45:24,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 01:45:24,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:45:24,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:45:24,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:45:24,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:45:24,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:45:24,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:45:24,678 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:45:24,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:45:24,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:45:24,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:45:24,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:45:24,679 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:45:24,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:45:24,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:45:24,680 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:45:24,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:45:24,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:45:24,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:45:24,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:45:24,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:45:24,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:45:24,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:45:24,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:45:24,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:45:24,683 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:45:24,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:45:24,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:45:24,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:45:24,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:45:24,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:45:24,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:45:24,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:45:24,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:45:24,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:45:24,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:45:24,686 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:45:24,686 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:45:24,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:45:24,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:45:24,687 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:45:24,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:45:24,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:45:24,687 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:45:24,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:45:24,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:45:24,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:45:24,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:45:24,963 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:45:24,964 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:45:24,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:45:26,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:45:26,633 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:45:26,633 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:45:26,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d64ffe0/7f6f7674adab4ba98fa1160d83ba4244/FLAGb83447cac [2023-12-22 01:45:26,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d64ffe0/7f6f7674adab4ba98fa1160d83ba4244 [2023-12-22 01:45:26,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:45:26,690 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:45:26,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:45:26,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:45:26,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:45:26,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:45:26" (1/1) ... [2023-12-22 01:45:26,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cab4808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:26, skipping insertion in model container [2023-12-22 01:45:26,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:45:26" (1/1) ... [2023-12-22 01:45:26,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:45:27,206 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[15584,15597] [2023-12-22 01:45:27,285 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[22645,22658] [2023-12-22 01:45:28,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:45:28,058 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:45:28,112 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[15584,15597] [2023-12-22 01:45:28,127 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[22645,22658] [2023-12-22 01:45:28,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:45:28,560 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:45:28,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28 WrapperNode [2023-12-22 01:45:28,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:45:28,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:45:28,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:45:28,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:45:28,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,806 INFO L138 Inliner]: procedures = 39, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5122 [2023-12-22 01:45:28,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:45:28,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:45:28,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:45:28,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:45:28,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,921 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]. [2023-12-22 01:45:28,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:28,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:45:29,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:45:29,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:45:29,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:45:29,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (1/1) ... [2023-12-22 01:45:29,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:45:29,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:45:29,168 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) [2023-12-22 01:45:29,192 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 [2023-12-22 01:45:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:45:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:45:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:45:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:45:29,307 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:45:29,309 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:45:57,416 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:45:57,481 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:45:57,481 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:45:57,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:45:57 BoogieIcfgContainer [2023-12-22 01:45:57,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:45:57,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:45:57,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:45:57,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:45:57,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:45:26" (1/3) ... [2023-12-22 01:45:57,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dcb590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:45:57, skipping insertion in model container [2023-12-22 01:45:57,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:45:28" (2/3) ... [2023-12-22 01:45:57,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dcb590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:45:57, skipping insertion in model container [2023-12-22 01:45:57,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:45:57" (3/3) ... [2023-12-22 01:45:57,491 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:45:57,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:45:57,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:45:57,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:45:57,590 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;@71220a16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:45:57,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:45:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 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) [2023-12-22 01:45:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:45:57,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:45:57,612 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] [2023-12-22 01:45:57,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:45:57,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:45:57,622 INFO L85 PathProgramCache]: Analyzing trace with hash -713532304, now seen corresponding path program 1 times [2023-12-22 01:45:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:45:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981578777] [2023-12-22 01:45:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:45:57,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:45:57,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:45:57,646 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) [2023-12-22 01:45:57,692 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 [2023-12-22 01:45:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:45:57,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:45:57,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:45:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:45:57,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:45:57,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:45:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981578777] [2023-12-22 01:45:57,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981578777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:45:57,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:45:57,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:45:57,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137002372] [2023-12-22 01:45:57,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:45:57,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:45:57,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:45:57,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:45:57,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:45:57,873 INFO L87 Difference]: Start difference. First operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-22 01:45:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:45:58,047 INFO L93 Difference]: Finished difference Result 1653 states and 3253 transitions. [2023-12-22 01:45:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:45:58,053 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2023-12-22 01:45:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:45:58,075 INFO L225 Difference]: With dead ends: 1653 [2023-12-22 01:45:58,075 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:45:58,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:45:58,092 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:45:58,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1598 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:45:58,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:45:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:45:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.896797153024911) internal successors, (1599), 844 states have internal predecessors, (1599), 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) [2023-12-22 01:45:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2023-12-22 01:45:58,176 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2023-12-22 01:45:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:45:58,176 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2023-12-22 01:45:58,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-22 01:45:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2023-12-22 01:45:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:45:58,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:45:58,178 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] [2023-12-22 01:45:58,192 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 [2023-12-22 01:45:58,384 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 [2023-12-22 01:45:58,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:45:58,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:45:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1892491250, now seen corresponding path program 1 times [2023-12-22 01:45:58,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:45:58,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794520757] [2023-12-22 01:45:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:45:58,387 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 [2023-12-22 01:45:58,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:45:58,388 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) [2023-12-22 01:45:58,391 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 [2023-12-22 01:45:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:45:58,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:45:58,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:45:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:45:58,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:45:58,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:45:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794520757] [2023-12-22 01:45:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794520757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:45:58,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:45:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:45:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592648110] [2023-12-22 01:45:58,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:45:58,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:45:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:45:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:45:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:45:58,561 INFO L87 Difference]: Start difference. First operand 845 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-12-22 01:45:58,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:45:58,676 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2023-12-22 01:45:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:45:58,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2023-12-22 01:45:58,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:45:58,681 INFO L225 Difference]: With dead ends: 895 [2023-12-22 01:45:58,681 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:45:58,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:45:58,683 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:45:58,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4744 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:45:58,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:45:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:45:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.849347568208778) internal successors, (1559), 844 states have internal predecessors, (1559), 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) [2023-12-22 01:45:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2023-12-22 01:45:58,705 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2023-12-22 01:45:58,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:45:58,706 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2023-12-22 01:45:58,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-12-22 01:45:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2023-12-22 01:45:58,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 01:45:58,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:45:58,713 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] [2023-12-22 01:45:58,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 01:45:58,916 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 [2023-12-22 01:45:58,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:45:58,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:45:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash 902394301, now seen corresponding path program 1 times [2023-12-22 01:45:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:45:58,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758940968] [2023-12-22 01:45:58,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:45:58,919 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 [2023-12-22 01:45:58,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:45:58,920 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) [2023-12-22 01:45:58,935 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 [2023-12-22 01:45:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:45:59,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:45:59,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:45:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:45:59,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:45:59,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:45:59,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758940968] [2023-12-22 01:45:59,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758940968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:45:59,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:45:59,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:45:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453195114] [2023-12-22 01:45:59,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:45:59,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:45:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:45:59,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:45:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:45:59,139 INFO L87 Difference]: Start difference. First operand 845 states and 1559 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2023-12-22 01:46:40,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:40,631 INFO L93 Difference]: Finished difference Result 2349 states and 4432 transitions. [2023-12-22 01:46:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:40,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2023-12-22 01:46:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:40,639 INFO L225 Difference]: With dead ends: 2349 [2023-12-22 01:46:40,639 INFO L226 Difference]: Without dead ends: 1596 [2023-12-22 01:46:40,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:40,642 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 856 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:40,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 664 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 41.3s Time] [2023-12-22 01:46:40,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2023-12-22 01:46:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1596. [2023-12-22 01:46:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1594 states have (on average 1.547051442910916) internal successors, (2466), 1595 states have internal predecessors, (2466), 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) [2023-12-22 01:46:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2466 transitions. [2023-12-22 01:46:40,682 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2466 transitions. Word has length 60 [2023-12-22 01:46:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:40,682 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 2466 transitions. [2023-12-22 01:46:40,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2023-12-22 01:46:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2466 transitions. [2023-12-22 01:46:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 01:46:40,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:40,684 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] [2023-12-22 01:46:40,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 01:46:40,887 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 [2023-12-22 01:46:40,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:40,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash -808348940, now seen corresponding path program 1 times [2023-12-22 01:46:40,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700319622] [2023-12-22 01:46:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:40,890 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 [2023-12-22 01:46:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:40,891 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) [2023-12-22 01:46:40,895 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 [2023-12-22 01:46:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:40,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:46:40,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:42,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:42,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700319622] [2023-12-22 01:46:42,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700319622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:42,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:46:42,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783025145] [2023-12-22 01:46:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:42,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:46:42,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:42,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:46:42,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:46:42,293 INFO L87 Difference]: Start difference. First operand 1596 states and 2466 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2023-12-22 01:46:42,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:42,745 INFO L93 Difference]: Finished difference Result 1925 states and 2998 transitions. [2023-12-22 01:46:42,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:46:42,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2023-12-22 01:46:42,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:42,754 INFO L225 Difference]: With dead ends: 1925 [2023-12-22 01:46:42,755 INFO L226 Difference]: Without dead ends: 1878 [2023-12-22 01:46:42,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:46:42,756 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 3358 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3358 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:42,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3358 Valid, 2360 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 01:46:42,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2023-12-22 01:46:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1686. [2023-12-22 01:46:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1684 states have (on average 1.5516627078384797) internal successors, (2613), 1685 states have internal predecessors, (2613), 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) [2023-12-22 01:46:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2613 transitions. [2023-12-22 01:46:42,800 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2613 transitions. Word has length 62 [2023-12-22 01:46:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:42,800 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 2613 transitions. [2023-12-22 01:46:42,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2023-12-22 01:46:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2613 transitions. [2023-12-22 01:46:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 01:46:42,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:42,802 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] [2023-12-22 01:46:42,808 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 [2023-12-22 01:46:43,008 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 [2023-12-22 01:46:43,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:43,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 431995268, now seen corresponding path program 1 times [2023-12-22 01:46:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879293037] [2023-12-22 01:46:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:43,010 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 [2023-12-22 01:46:43,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:43,012 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) [2023-12-22 01:46:43,045 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 [2023-12-22 01:46:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:43,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:43,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:43,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:43,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:43,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879293037] [2023-12-22 01:46:43,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879293037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:43,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:43,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:43,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965286751] [2023-12-22 01:46:43,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:43,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:43,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:43,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:43,240 INFO L87 Difference]: Start difference. First operand 1686 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-22 01:46:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:43,295 INFO L93 Difference]: Finished difference Result 1944 states and 3031 transitions. [2023-12-22 01:46:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:43,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2023-12-22 01:46:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:43,304 INFO L225 Difference]: With dead ends: 1944 [2023-12-22 01:46:43,304 INFO L226 Difference]: Without dead ends: 1807 [2023-12-22 01:46:43,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:43,307 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1488 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:43,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1625 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2023-12-22 01:46:43,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1805. [2023-12-22 01:46:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1803 states have (on average 1.5540765391014975) internal successors, (2802), 1804 states have internal predecessors, (2802), 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) [2023-12-22 01:46:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2802 transitions. [2023-12-22 01:46:43,389 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2802 transitions. Word has length 64 [2023-12-22 01:46:43,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:43,390 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 2802 transitions. [2023-12-22 01:46:43,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-22 01:46:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2802 transitions. [2023-12-22 01:46:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 01:46:43,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:43,400 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] [2023-12-22 01:46:43,407 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 [2023-12-22 01:46:43,604 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 [2023-12-22 01:46:43,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:43,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash 444744363, now seen corresponding path program 1 times [2023-12-22 01:46:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747398253] [2023-12-22 01:46:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:43,606 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 [2023-12-22 01:46:43,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:43,607 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) [2023-12-22 01:46:43,610 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 [2023-12-22 01:46:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:43,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:46:43,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:43,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:43,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747398253] [2023-12-22 01:46:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747398253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:46:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711757178] [2023-12-22 01:46:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:46:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:46:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:46:43,730 INFO L87 Difference]: Start difference. First operand 1805 states and 2802 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-22 01:46:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:43,813 INFO L93 Difference]: Finished difference Result 1819 states and 2819 transitions. [2023-12-22 01:46:43,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:46:43,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2023-12-22 01:46:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:43,821 INFO L225 Difference]: With dead ends: 1819 [2023-12-22 01:46:43,822 INFO L226 Difference]: Without dead ends: 1817 [2023-12-22 01:46:43,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:46:43,823 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:43,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4657 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:46:43,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2023-12-22 01:46:43,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1813. [2023-12-22 01:46:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1811 states have (on average 1.5510767531750413) internal successors, (2809), 1812 states have internal predecessors, (2809), 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) [2023-12-22 01:46:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2809 transitions. [2023-12-22 01:46:43,868 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2809 transitions. Word has length 65 [2023-12-22 01:46:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:43,868 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 2809 transitions. [2023-12-22 01:46:43,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-22 01:46:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2809 transitions. [2023-12-22 01:46:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:43,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:43,870 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] [2023-12-22 01:46:43,879 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 [2023-12-22 01:46:44,074 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 [2023-12-22 01:46:44,074 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:44,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash 239452988, now seen corresponding path program 1 times [2023-12-22 01:46:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:44,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985185921] [2023-12-22 01:46:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:44,076 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 [2023-12-22 01:46:44,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:44,077 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) [2023-12-22 01:46:44,108 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 [2023-12-22 01:46:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:44,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:44,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:44,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:44,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:44,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985185921] [2023-12-22 01:46:44,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985185921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:44,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:44,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887013352] [2023-12-22 01:46:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:44,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:44,297 INFO L87 Difference]: Start difference. First operand 1813 states and 2809 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:44,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:44,349 INFO L93 Difference]: Finished difference Result 2089 states and 3249 transitions. [2023-12-22 01:46:44,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:44,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:44,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:44,358 INFO L225 Difference]: With dead ends: 2089 [2023-12-22 01:46:44,358 INFO L226 Difference]: Without dead ends: 1946 [2023-12-22 01:46:44,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:44,361 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1504 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1692 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 [2023-12-22 01:46:44,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2023-12-22 01:46:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1944. [2023-12-22 01:46:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1942 states have (on average 1.5525231719876416) internal successors, (3015), 1943 states have internal predecessors, (3015), 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) [2023-12-22 01:46:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 3015 transitions. [2023-12-22 01:46:44,404 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 3015 transitions. Word has length 66 [2023-12-22 01:46:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:44,406 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 3015 transitions. [2023-12-22 01:46:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 3015 transitions. [2023-12-22 01:46:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:44,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:44,407 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] [2023-12-22 01:46:44,413 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 [2023-12-22 01:46:44,610 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 [2023-12-22 01:46:44,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:44,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:44,612 INFO L85 PathProgramCache]: Analyzing trace with hash -170933700, now seen corresponding path program 1 times [2023-12-22 01:46:44,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:44,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232612342] [2023-12-22 01:46:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:44,613 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 [2023-12-22 01:46:44,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:44,615 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) [2023-12-22 01:46:44,649 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 [2023-12-22 01:46:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:44,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:44,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:44,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:44,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:44,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232612342] [2023-12-22 01:46:44,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232612342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:44,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:44,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:44,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141579378] [2023-12-22 01:46:44,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:44,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:44,824 INFO L87 Difference]: Start difference. First operand 1944 states and 3015 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:44,876 INFO L93 Difference]: Finished difference Result 2694 states and 4198 transitions. [2023-12-22 01:46:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:44,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:44,885 INFO L225 Difference]: With dead ends: 2694 [2023-12-22 01:46:44,885 INFO L226 Difference]: Without dead ends: 2301 [2023-12-22 01:46:44,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:44,887 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1502 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1698 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 [2023-12-22 01:46:44,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2023-12-22 01:46:44,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2299. [2023-12-22 01:46:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2297 states have (on average 1.5520243796255986) internal successors, (3565), 2298 states have internal predecessors, (3565), 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) [2023-12-22 01:46:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3565 transitions. [2023-12-22 01:46:44,939 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3565 transitions. Word has length 66 [2023-12-22 01:46:44,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:44,939 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3565 transitions. [2023-12-22 01:46:44,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3565 transitions. [2023-12-22 01:46:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:44,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:44,940 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] [2023-12-22 01:46:44,944 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 [2023-12-22 01:46:45,143 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 [2023-12-22 01:46:45,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:45,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:45,145 INFO L85 PathProgramCache]: Analyzing trace with hash -399572932, now seen corresponding path program 1 times [2023-12-22 01:46:45,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:45,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092938722] [2023-12-22 01:46:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:45,145 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 [2023-12-22 01:46:45,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:45,149 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) [2023-12-22 01:46:45,183 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 [2023-12-22 01:46:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:45,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:45,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:45,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:45,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:45,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092938722] [2023-12-22 01:46:45,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092938722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:45,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:45,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:45,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630785893] [2023-12-22 01:46:45,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:45,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:45,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:45,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:45,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:45,331 INFO L87 Difference]: Start difference. First operand 2299 states and 3565 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:45,393 INFO L93 Difference]: Finished difference Result 3723 states and 5785 transitions. [2023-12-22 01:46:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:45,405 INFO L225 Difference]: With dead ends: 3723 [2023-12-22 01:46:45,406 INFO L226 Difference]: Without dead ends: 2975 [2023-12-22 01:46:45,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:45,410 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1498 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1694 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 [2023-12-22 01:46:45,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:45,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2023-12-22 01:46:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2973. [2023-12-22 01:46:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2971 states have (on average 1.5459441265567149) internal successors, (4593), 2972 states have internal predecessors, (4593), 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) [2023-12-22 01:46:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 4593 transitions. [2023-12-22 01:46:45,478 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 4593 transitions. Word has length 66 [2023-12-22 01:46:45,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:45,478 INFO L495 AbstractCegarLoop]: Abstraction has 2973 states and 4593 transitions. [2023-12-22 01:46:45,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 4593 transitions. [2023-12-22 01:46:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:45,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:45,483 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] [2023-12-22 01:46:45,494 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 [2023-12-22 01:46:45,689 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 [2023-12-22 01:46:45,690 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:45,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1025228996, now seen corresponding path program 1 times [2023-12-22 01:46:45,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:45,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467899492] [2023-12-22 01:46:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:45,691 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 [2023-12-22 01:46:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:45,696 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) [2023-12-22 01:46:45,699 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 [2023-12-22 01:46:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:45,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:45,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:45,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:45,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:45,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467899492] [2023-12-22 01:46:45,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467899492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:45,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:45,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:45,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790073044] [2023-12-22 01:46:45,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:45,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:45,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:45,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:45,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:45,916 INFO L87 Difference]: Start difference. First operand 2973 states and 4593 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:45,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:45,986 INFO L93 Difference]: Finished difference Result 5673 states and 8743 transitions. [2023-12-22 01:46:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:45,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:46,002 INFO L225 Difference]: With dead ends: 5673 [2023-12-22 01:46:46,004 INFO L226 Difference]: Without dead ends: 4251 [2023-12-22 01:46:46,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:46,009 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1496 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1696 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 [2023-12-22 01:46:46,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2023-12-22 01:46:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4249. [2023-12-22 01:46:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 4247 states have (on average 1.531669413703791) internal successors, (6505), 4248 states have internal predecessors, (6505), 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) [2023-12-22 01:46:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 6505 transitions. [2023-12-22 01:46:46,116 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 6505 transitions. Word has length 66 [2023-12-22 01:46:46,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:46,116 INFO L495 AbstractCegarLoop]: Abstraction has 4249 states and 6505 transitions. [2023-12-22 01:46:46,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:46,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 6505 transitions. [2023-12-22 01:46:46,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:46,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:46,117 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] [2023-12-22 01:46:46,121 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 [2023-12-22 01:46:46,321 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 [2023-12-22 01:46:46,322 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:46,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash -136495556, now seen corresponding path program 1 times [2023-12-22 01:46:46,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:46,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394272044] [2023-12-22 01:46:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:46,324 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 [2023-12-22 01:46:46,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:46,326 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) [2023-12-22 01:46:46,352 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 [2023-12-22 01:46:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:46,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:46,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:46,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:46,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:46,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394272044] [2023-12-22 01:46:46,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394272044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:46,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:46,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413444667] [2023-12-22 01:46:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:46,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:46,498 INFO L87 Difference]: Start difference. First operand 4249 states and 6505 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:46,591 INFO L93 Difference]: Finished difference Result 9357 states and 14227 transitions. [2023-12-22 01:46:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:46,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:46,616 INFO L225 Difference]: With dead ends: 9357 [2023-12-22 01:46:46,617 INFO L226 Difference]: Without dead ends: 6659 [2023-12-22 01:46:46,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:46,624 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1494 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1698 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 [2023-12-22 01:46:46,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2023-12-22 01:46:46,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6657. [2023-12-22 01:46:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6655 states have (on average 1.5087903831705485) internal successors, (10041), 6656 states have internal predecessors, (10041), 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) [2023-12-22 01:46:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 10041 transitions. [2023-12-22 01:46:46,821 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 10041 transitions. Word has length 66 [2023-12-22 01:46:46,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:46,821 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 10041 transitions. [2023-12-22 01:46:46,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 10041 transitions. [2023-12-22 01:46:46,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:46:46,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:46,822 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] [2023-12-22 01:46:46,829 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 [2023-12-22 01:46:47,026 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 [2023-12-22 01:46:47,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:47,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash -439516868, now seen corresponding path program 1 times [2023-12-22 01:46:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:47,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132457866] [2023-12-22 01:46:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:47,027 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 [2023-12-22 01:46:47,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:47,028 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) [2023-12-22 01:46:47,029 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 [2023-12-22 01:46:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:47,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:47,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:47,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:47,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:47,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132457866] [2023-12-22 01:46:47,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132457866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:47,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:47,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:47,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157661658] [2023-12-22 01:46:47,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:47,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:47,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:47,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:47,211 INFO L87 Difference]: Start difference. First operand 6657 states and 10041 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:47,365 INFO L93 Difference]: Finished difference Result 16293 states and 24331 transitions. [2023-12-22 01:46:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:46:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:47,401 INFO L225 Difference]: With dead ends: 16293 [2023-12-22 01:46:47,402 INFO L226 Difference]: Without dead ends: 11187 [2023-12-22 01:46:47,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:47,414 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1500 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1700 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 [2023-12-22 01:46:47,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1700 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11187 states. [2023-12-22 01:46:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11187 to 11185. [2023-12-22 01:46:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11183 states have (on average 1.4787624072252525) internal successors, (16537), 11184 states have internal predecessors, (16537), 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) [2023-12-22 01:46:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 16537 transitions. [2023-12-22 01:46:47,715 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 16537 transitions. Word has length 66 [2023-12-22 01:46:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:47,715 INFO L495 AbstractCegarLoop]: Abstraction has 11185 states and 16537 transitions. [2023-12-22 01:46:47,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:46:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 16537 transitions. [2023-12-22 01:46:47,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:46:47,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:47,719 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-12-22 01:46:47,723 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 (13)] Ended with exit code 0 [2023-12-22 01:46:47,923 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 [2023-12-22 01:46:47,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:47,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1981614661, now seen corresponding path program 1 times [2023-12-22 01:46:47,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:47,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494358092] [2023-12-22 01:46:47,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:47,925 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 [2023-12-22 01:46:47,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:47,926 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) [2023-12-22 01:46:47,958 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 [2023-12-22 01:46:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:48,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:46:48,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:49,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:46:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:49,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494358092] [2023-12-22 01:46:49,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494358092] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:46:49,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:46:49,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:46:49,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205925885] [2023-12-22 01:46:49,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:46:49,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:46:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:46:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:46:49,696 INFO L87 Difference]: Start difference. First operand 11185 states and 16537 transitions. Second operand has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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) [2023-12-22 01:46:52,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:52,864 INFO L93 Difference]: Finished difference Result 32347 states and 47294 transitions. [2023-12-22 01:46:52,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:46:52,864 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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 86 [2023-12-22 01:46:52,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:52,921 INFO L225 Difference]: With dead ends: 32347 [2023-12-22 01:46:52,921 INFO L226 Difference]: Without dead ends: 25625 [2023-12-22 01:46:52,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:46:52,939 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 5208 mSDsluCounter, 14021 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 15587 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:52,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 15587 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 01:46:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25625 states. [2023-12-22 01:46:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25625 to 20817. [2023-12-22 01:46:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20817 states, 20815 states have (on average 1.4693730482824885) internal successors, (30585), 20816 states have internal predecessors, (30585), 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) [2023-12-22 01:46:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20817 states to 20817 states and 30585 transitions. [2023-12-22 01:46:53,573 INFO L78 Accepts]: Start accepts. Automaton has 20817 states and 30585 transitions. Word has length 86 [2023-12-22 01:46:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:53,573 INFO L495 AbstractCegarLoop]: Abstraction has 20817 states and 30585 transitions. [2023-12-22 01:46:53,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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) [2023-12-22 01:46:53,574 INFO L276 IsEmpty]: Start isEmpty. Operand 20817 states and 30585 transitions. [2023-12-22 01:46:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:46:53,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:53,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-12-22 01:46:53,634 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 [2023-12-22 01:46:53,824 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 [2023-12-22 01:46:53,824 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:53,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1902965947, now seen corresponding path program 1 times [2023-12-22 01:46:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625813653] [2023-12-22 01:46:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:53,825 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 [2023-12-22 01:46:53,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:53,826 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) [2023-12-22 01:46:53,829 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 [2023-12-22 01:46:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:53,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:53,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:53,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:53,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625813653] [2023-12-22 01:46:53,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625813653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:53,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:53,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:53,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585438561] [2023-12-22 01:46:53,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:53,958 INFO L87 Difference]: Start difference. First operand 20817 states and 30585 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:46:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:54,211 INFO L93 Difference]: Finished difference Result 34281 states and 50480 transitions. [2023-12-22 01:46:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2023-12-22 01:46:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:54,245 INFO L225 Difference]: With dead ends: 34281 [2023-12-22 01:46:54,245 INFO L226 Difference]: Without dead ends: 15015 [2023-12-22 01:46:54,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:54,269 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 55 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:54,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3149 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15015 states. [2023-12-22 01:46:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15015 to 15008. [2023-12-22 01:46:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15008 states, 15006 states have (on average 1.4719445555111288) internal successors, (22088), 15007 states have internal predecessors, (22088), 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) [2023-12-22 01:46:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15008 states to 15008 states and 22088 transitions. [2023-12-22 01:46:54,748 INFO L78 Accepts]: Start accepts. Automaton has 15008 states and 22088 transitions. Word has length 86 [2023-12-22 01:46:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:54,748 INFO L495 AbstractCegarLoop]: Abstraction has 15008 states and 22088 transitions. [2023-12-22 01:46:54,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:46:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 15008 states and 22088 transitions. [2023-12-22 01:46:54,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 01:46:54,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:54,752 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2023-12-22 01:46:54,762 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 [2023-12-22 01:46:54,956 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 [2023-12-22 01:46:54,957 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:54,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -922338825, now seen corresponding path program 1 times [2023-12-22 01:46:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:54,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993043479] [2023-12-22 01:46:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:54,958 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 [2023-12-22 01:46:54,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:54,959 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) [2023-12-22 01:46:54,959 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 [2023-12-22 01:46:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:55,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:55,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:55,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:55,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:55,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993043479] [2023-12-22 01:46:55,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993043479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:55,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:55,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:55,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268688894] [2023-12-22 01:46:55,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:55,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:55,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:55,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:55,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:55,106 INFO L87 Difference]: Start difference. First operand 15008 states and 22088 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2023-12-22 01:46:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:55,260 INFO L93 Difference]: Finished difference Result 21732 states and 31930 transitions. [2023-12-22 01:46:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:46:55,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2023-12-22 01:46:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:55,271 INFO L225 Difference]: With dead ends: 21732 [2023-12-22 01:46:55,271 INFO L226 Difference]: Without dead ends: 8290 [2023-12-22 01:46:55,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:55,287 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 51 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:55,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:46:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2023-12-22 01:46:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 8288. [2023-12-22 01:46:55,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 8286 states have (on average 1.4665701182717836) internal successors, (12152), 8287 states have internal predecessors, (12152), 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) [2023-12-22 01:46:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 12152 transitions. [2023-12-22 01:46:55,525 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 12152 transitions. Word has length 88 [2023-12-22 01:46:55,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:55,526 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 12152 transitions. [2023-12-22 01:46:55,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2023-12-22 01:46:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 12152 transitions. [2023-12-22 01:46:55,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 01:46:55,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:55,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-22 01:46:55,534 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 [2023-12-22 01:46:55,731 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 [2023-12-22 01:46:55,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:55,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1995928241, now seen corresponding path program 1 times [2023-12-22 01:46:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:55,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863043221] [2023-12-22 01:46:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:55,733 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 [2023-12-22 01:46:55,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:55,734 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) [2023-12-22 01:46:55,736 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 [2023-12-22 01:46:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:55,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:46:55,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:56,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:46:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:57,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:57,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863043221] [2023-12-22 01:46:57,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863043221] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:46:57,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:46:57,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:46:57,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841160930] [2023-12-22 01:46:57,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:46:57,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:46:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:57,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:46:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:46:57,164 INFO L87 Difference]: Start difference. First operand 8288 states and 12152 transitions. Second operand has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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) [2023-12-22 01:46:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:46:59,139 INFO L93 Difference]: Finished difference Result 27400 states and 39612 transitions. [2023-12-22 01:46:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:46:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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 89 [2023-12-22 01:46:59,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:46:59,161 INFO L225 Difference]: With dead ends: 27400 [2023-12-22 01:46:59,161 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:46:59,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:46:59,171 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 2179 mSDsluCounter, 11032 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 12652 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:46:59,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 12652 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 01:46:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:46:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 15584. [2023-12-22 01:46:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15584 states, 15582 states have (on average 1.4360159158002823) internal successors, (22376), 15583 states have internal predecessors, (22376), 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) [2023-12-22 01:46:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15584 states to 15584 states and 22376 transitions. [2023-12-22 01:46:59,574 INFO L78 Accepts]: Start accepts. Automaton has 15584 states and 22376 transitions. Word has length 89 [2023-12-22 01:46:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:46:59,574 INFO L495 AbstractCegarLoop]: Abstraction has 15584 states and 22376 transitions. [2023-12-22 01:46:59,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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) [2023-12-22 01:46:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 15584 states and 22376 transitions. [2023-12-22 01:46:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 01:46:59,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:46:59,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-12-22 01:46:59,583 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 [2023-12-22 01:46:59,781 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 [2023-12-22 01:46:59,781 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:46:59,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:46:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1259536057, now seen corresponding path program 1 times [2023-12-22 01:46:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:46:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181727605] [2023-12-22 01:46:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:46:59,782 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 [2023-12-22 01:46:59,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:46:59,784 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) [2023-12-22 01:46:59,788 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 [2023-12-22 01:46:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:46:59,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:46:59,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:46:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:46:59,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:46:59,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:46:59,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181727605] [2023-12-22 01:46:59,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181727605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:46:59,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:46:59,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:46:59,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107118641] [2023-12-22 01:46:59,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:46:59,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:46:59,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:46:59,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:46:59,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:46:59,924 INFO L87 Difference]: Start difference. First operand 15584 states and 22376 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-22 01:47:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:00,059 INFO L93 Difference]: Finished difference Result 22596 states and 32362 transitions. [2023-12-22 01:47:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:47:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-22 01:47:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:00,070 INFO L225 Difference]: With dead ends: 22596 [2023-12-22 01:47:00,071 INFO L226 Difference]: Without dead ends: 8578 [2023-12-22 01:47:00,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:00,082 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 47 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:00,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:47:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8578 states. [2023-12-22 01:47:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8578 to 8576. [2023-12-22 01:47:00,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8576 states, 8574 states have (on average 1.4341031024026125) internal successors, (12296), 8575 states have internal predecessors, (12296), 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) [2023-12-22 01:47:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8576 states to 8576 states and 12296 transitions. [2023-12-22 01:47:00,318 INFO L78 Accepts]: Start accepts. Automaton has 8576 states and 12296 transitions. Word has length 91 [2023-12-22 01:47:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 8576 states and 12296 transitions. [2023-12-22 01:47:00,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-22 01:47:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 8576 states and 12296 transitions. [2023-12-22 01:47:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 01:47:00,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:00,320 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-12-22 01:47:00,327 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 [2023-12-22 01:47:00,524 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 [2023-12-22 01:47:00,525 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:00,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:00,525 INFO L85 PathProgramCache]: Analyzing trace with hash 645989679, now seen corresponding path program 1 times [2023-12-22 01:47:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002572551] [2023-12-22 01:47:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:00,526 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 [2023-12-22 01:47:00,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:00,527 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) [2023-12-22 01:47:00,528 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 [2023-12-22 01:47:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:00,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:47:00,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:01,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:02,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:02,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002572551] [2023-12-22 01:47:02,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002572551] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:02,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:02,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:47:02,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436796095] [2023-12-22 01:47:02,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:02,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:47:02,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:47:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:47:02,109 INFO L87 Difference]: Start difference. First operand 8576 states and 12296 transitions. Second operand has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2023-12-22 01:47:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:04,276 INFO L93 Difference]: Finished difference Result 27688 states and 39084 transitions. [2023-12-22 01:47:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:47:04,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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 92 [2023-12-22 01:47:04,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:04,298 INFO L225 Difference]: With dead ends: 27688 [2023-12-22 01:47:04,298 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:47:04,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:47:04,306 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 5205 mSDsluCounter, 12494 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 14096 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:04,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 14096 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 01:47:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:47:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 16160. [2023-12-22 01:47:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16160 states, 16158 states have (on average 1.4026488426785493) internal successors, (22664), 16159 states have internal predecessors, (22664), 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) [2023-12-22 01:47:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16160 states to 16160 states and 22664 transitions. [2023-12-22 01:47:04,733 INFO L78 Accepts]: Start accepts. Automaton has 16160 states and 22664 transitions. Word has length 92 [2023-12-22 01:47:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:04,733 INFO L495 AbstractCegarLoop]: Abstraction has 16160 states and 22664 transitions. [2023-12-22 01:47:04,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2023-12-22 01:47:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 16160 states and 22664 transitions. [2023-12-22 01:47:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 01:47:04,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:04,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-22 01:47:04,740 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 [2023-12-22 01:47:04,940 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 [2023-12-22 01:47:04,940 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:04,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1912047101, now seen corresponding path program 1 times [2023-12-22 01:47:04,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:04,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264112300] [2023-12-22 01:47:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:04,941 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 [2023-12-22 01:47:04,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:04,942 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) [2023-12-22 01:47:04,943 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 [2023-12-22 01:47:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:05,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:47:05,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:05,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:47:05,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264112300] [2023-12-22 01:47:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264112300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:47:05,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:47:05,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:47:05,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497292913] [2023-12-22 01:47:05,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:47:05,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:47:05,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:47:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:05,075 INFO L87 Difference]: Start difference. First operand 16160 states and 22664 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-22 01:47:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:05,288 INFO L93 Difference]: Finished difference Result 23460 states and 32794 transitions. [2023-12-22 01:47:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:47:05,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-12-22 01:47:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:05,297 INFO L225 Difference]: With dead ends: 23460 [2023-12-22 01:47:05,297 INFO L226 Difference]: Without dead ends: 8866 [2023-12-22 01:47:05,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:05,309 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 43 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:05,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:47:05,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2023-12-22 01:47:05,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 8864. [2023-12-22 01:47:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8864 states, 8862 states have (on average 1.4037463326562853) internal successors, (12440), 8863 states have internal predecessors, (12440), 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) [2023-12-22 01:47:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8864 states to 8864 states and 12440 transitions. [2023-12-22 01:47:05,479 INFO L78 Accepts]: Start accepts. Automaton has 8864 states and 12440 transitions. Word has length 94 [2023-12-22 01:47:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:05,479 INFO L495 AbstractCegarLoop]: Abstraction has 8864 states and 12440 transitions. [2023-12-22 01:47:05,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-22 01:47:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8864 states and 12440 transitions. [2023-12-22 01:47:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-22 01:47:05,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:05,480 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] [2023-12-22 01:47:05,484 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 [2023-12-22 01:47:05,681 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 [2023-12-22 01:47:05,682 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:05,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1151103525, now seen corresponding path program 1 times [2023-12-22 01:47:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:05,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79372921] [2023-12-22 01:47:05,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:05,683 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 [2023-12-22 01:47:05,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:05,684 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) [2023-12-22 01:47:05,688 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 [2023-12-22 01:47:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:05,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:47:05,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:06,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:06,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:06,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79372921] [2023-12-22 01:47:06,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79372921] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:06,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:47:06,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132379634] [2023-12-22 01:47:06,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:06,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:47:06,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:06,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:47:06,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:47:06,954 INFO L87 Difference]: Start difference. First operand 8864 states and 12440 transitions. Second operand has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2023-12-22 01:47:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:08,540 INFO L93 Difference]: Finished difference Result 27976 states and 38556 transitions. [2023-12-22 01:47:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:47:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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 95 [2023-12-22 01:47:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:08,566 INFO L225 Difference]: With dead ends: 27976 [2023-12-22 01:47:08,566 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:47:08,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:47:08,577 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 5007 mSDsluCounter, 10915 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:08,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 12499 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:47:08,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:47:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 16736. [2023-12-22 01:47:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16736 states, 16734 states have (on average 1.371578821560894) internal successors, (22952), 16735 states have internal predecessors, (22952), 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) [2023-12-22 01:47:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16736 states to 16736 states and 22952 transitions. [2023-12-22 01:47:08,987 INFO L78 Accepts]: Start accepts. Automaton has 16736 states and 22952 transitions. Word has length 95 [2023-12-22 01:47:08,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:08,988 INFO L495 AbstractCegarLoop]: Abstraction has 16736 states and 22952 transitions. [2023-12-22 01:47:08,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2023-12-22 01:47:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand 16736 states and 22952 transitions. [2023-12-22 01:47:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 01:47:08,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:08,990 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-12-22 01:47:08,993 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 [2023-12-22 01:47:09,190 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 [2023-12-22 01:47:09,190 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:09,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash -616385339, now seen corresponding path program 1 times [2023-12-22 01:47:09,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:09,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313667919] [2023-12-22 01:47:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:09,192 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 [2023-12-22 01:47:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:09,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:47:09,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 01:47:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:09,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:47:09,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:09,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:47:09,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:09,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313667919] [2023-12-22 01:47:09,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313667919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:47:09,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:47:09,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:47:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348231518] [2023-12-22 01:47:09,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:47:09,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:47:09,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:47:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:09,323 INFO L87 Difference]: Start difference. First operand 16736 states and 22952 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2023-12-22 01:47:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:09,482 INFO L93 Difference]: Finished difference Result 24324 states and 33226 transitions. [2023-12-22 01:47:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:47:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2023-12-22 01:47:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:09,491 INFO L225 Difference]: With dead ends: 24324 [2023-12-22 01:47:09,492 INFO L226 Difference]: Without dead ends: 9154 [2023-12-22 01:47:09,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:09,503 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 39 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:09,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3089 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:47:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9154 states. [2023-12-22 01:47:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9154 to 9152. [2023-12-22 01:47:09,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9152 states, 9150 states have (on average 1.3753005464480874) internal successors, (12584), 9151 states have internal predecessors, (12584), 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) [2023-12-22 01:47:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9152 states to 9152 states and 12584 transitions. [2023-12-22 01:47:09,734 INFO L78 Accepts]: Start accepts. Automaton has 9152 states and 12584 transitions. Word has length 97 [2023-12-22 01:47:09,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:09,734 INFO L495 AbstractCegarLoop]: Abstraction has 9152 states and 12584 transitions. [2023-12-22 01:47:09,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2023-12-22 01:47:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 9152 states and 12584 transitions. [2023-12-22 01:47:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-22 01:47:09,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:09,735 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:47:09,739 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 (22)] Ended with exit code 0 [2023-12-22 01:47:09,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:47:09,936 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:09,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:09,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2036256419, now seen corresponding path program 1 times [2023-12-22 01:47:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:09,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953839715] [2023-12-22 01:47:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:09,937 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 [2023-12-22 01:47:09,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:09,938 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:47:09,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 01:47:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:10,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:47:10,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:10,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:11,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:11,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953839715] [2023-12-22 01:47:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953839715] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:11,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:47:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497664565] [2023-12-22 01:47:11,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:47:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:47:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:47:11,168 INFO L87 Difference]: Start difference. First operand 9152 states and 12584 transitions. Second operand has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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) [2023-12-22 01:47:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:12,996 INFO L93 Difference]: Finished difference Result 28264 states and 38028 transitions. [2023-12-22 01:47:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:47:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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 98 [2023-12-22 01:47:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:13,024 INFO L225 Difference]: With dead ends: 28264 [2023-12-22 01:47:13,024 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:47:13,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:47:13,038 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 4972 mSDsluCounter, 13861 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4972 SdHoareTripleChecker+Valid, 15427 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:13,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4972 Valid, 15427 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:47:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:47:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 17312. [2023-12-22 01:47:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17312 states, 17310 states have (on average 1.3425765453495089) internal successors, (23240), 17311 states have internal predecessors, (23240), 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) [2023-12-22 01:47:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17312 states to 17312 states and 23240 transitions. [2023-12-22 01:47:13,532 INFO L78 Accepts]: Start accepts. Automaton has 17312 states and 23240 transitions. Word has length 98 [2023-12-22 01:47:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:13,533 INFO L495 AbstractCegarLoop]: Abstraction has 17312 states and 23240 transitions. [2023-12-22 01:47:13,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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) [2023-12-22 01:47:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17312 states and 23240 transitions. [2023-12-22 01:47:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:47:13,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:13,534 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] [2023-12-22 01:47:13,538 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 (23)] Ended with exit code 0 [2023-12-22 01:47:13,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:47:13,735 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:13,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1955430385, now seen corresponding path program 1 times [2023-12-22 01:47:13,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:13,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124631352] [2023-12-22 01:47:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:13,736 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 [2023-12-22 01:47:13,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:13,738 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:47:13,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 01:47:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:13,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:47:13,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:13,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:47:13,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:13,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124631352] [2023-12-22 01:47:13,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124631352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:47:13,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:47:13,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:47:13,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304125477] [2023-12-22 01:47:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:47:13,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:47:13,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:13,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:47:13,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:47:13,919 INFO L87 Difference]: Start difference. First operand 17312 states and 23240 transitions. 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) [2023-12-22 01:47:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:14,138 INFO L93 Difference]: Finished difference Result 25094 states and 33491 transitions. [2023-12-22 01:47:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:47:14,139 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 [2023-12-22 01:47:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:14,148 INFO L225 Difference]: With dead ends: 25094 [2023-12-22 01:47:14,148 INFO L226 Difference]: Without dead ends: 9348 [2023-12-22 01:47:14,157 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 [2023-12-22 01:47:14,158 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 35 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:14,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3074 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:47:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2023-12-22 01:47:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 9346. [2023-12-22 01:47:14,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9346 states, 9344 states have (on average 1.3443921232876712) internal successors, (12562), 9345 states have internal predecessors, (12562), 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) [2023-12-22 01:47:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9346 states to 9346 states and 12562 transitions. [2023-12-22 01:47:14,369 INFO L78 Accepts]: Start accepts. Automaton has 9346 states and 12562 transitions. Word has length 100 [2023-12-22 01:47:14,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:14,369 INFO L495 AbstractCegarLoop]: Abstraction has 9346 states and 12562 transitions. [2023-12-22 01:47:14,369 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) [2023-12-22 01:47:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 9346 states and 12562 transitions. [2023-12-22 01:47:14,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-22 01:47:14,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:14,371 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:47:14,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 01:47:14,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:47:14,575 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:14,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash 69299097, now seen corresponding path program 1 times [2023-12-22 01:47:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:14,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171987889] [2023-12-22 01:47:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:14,577 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 [2023-12-22 01:47:14,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:14,578 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:47:14,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 01:47:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:14,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:47:14,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:15,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:15,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:15,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171987889] [2023-12-22 01:47:15,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171987889] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:15,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:15,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:47:15,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836676783] [2023-12-22 01:47:15,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:15,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:47:15,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:47:15,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:47:15,832 INFO L87 Difference]: Start difference. First operand 9346 states and 12562 transitions. Second operand has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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) [2023-12-22 01:47:17,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:17,303 INFO L93 Difference]: Finished difference Result 23780 states and 31213 transitions. [2023-12-22 01:47:17,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:47:17,303 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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 [2023-12-22 01:47:17,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:17,317 INFO L225 Difference]: With dead ends: 23780 [2023-12-22 01:47:17,317 INFO L226 Difference]: Without dead ends: 16000 [2023-12-22 01:47:17,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:47:17,324 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 6543 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:17,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6543 Valid, 13819 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:47:17,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16000 states. [2023-12-22 01:47:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16000 to 14878. [2023-12-22 01:47:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14878 states, 14876 states have (on average 1.313726808281796) internal successors, (19543), 14877 states have internal predecessors, (19543), 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) [2023-12-22 01:47:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14878 states to 14878 states and 19543 transitions. [2023-12-22 01:47:17,707 INFO L78 Accepts]: Start accepts. Automaton has 14878 states and 19543 transitions. Word has length 101 [2023-12-22 01:47:17,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:17,707 INFO L495 AbstractCegarLoop]: Abstraction has 14878 states and 19543 transitions. [2023-12-22 01:47:17,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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) [2023-12-22 01:47:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 14878 states and 19543 transitions. [2023-12-22 01:47:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 01:47:17,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:17,710 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 01:47:17,714 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 (25)] Ended with exit code 0 [2023-12-22 01:47:17,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:47:17,914 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:17,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:17,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1251832017, now seen corresponding path program 1 times [2023-12-22 01:47:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408689053] [2023-12-22 01:47:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:17,915 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 [2023-12-22 01:47:17,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:17,916 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:47:17,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 01:47:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:18,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:47:18,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:47:18,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:47:18,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408689053] [2023-12-22 01:47:18,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408689053] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:18,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:18,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:47:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290671077] [2023-12-22 01:47:18,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:18,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:47:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:47:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:47:18,276 INFO L87 Difference]: Start difference. First operand 14878 states and 19543 transitions. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2023-12-22 01:47:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:47:19,302 INFO L93 Difference]: Finished difference Result 52950 states and 67687 transitions. [2023-12-22 01:47:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:47:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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 [2023-12-22 01:47:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:47:19,344 INFO L225 Difference]: With dead ends: 52950 [2023-12-22 01:47:19,345 INFO L226 Difference]: Without dead ends: 39638 [2023-12-22 01:47:19,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:47:19,351 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 4472 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:47:19,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4472 Valid, 3325 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:47:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39638 states. [2023-12-22 01:47:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39638 to 38784. [2023-12-22 01:47:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38784 states, 38782 states have (on average 1.2431798256923314) internal successors, (48213), 38783 states have internal predecessors, (48213), 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) [2023-12-22 01:47:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38784 states to 38784 states and 48213 transitions. [2023-12-22 01:47:20,486 INFO L78 Accepts]: Start accepts. Automaton has 38784 states and 48213 transitions. Word has length 103 [2023-12-22 01:47:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:47:20,486 INFO L495 AbstractCegarLoop]: Abstraction has 38784 states and 48213 transitions. [2023-12-22 01:47:20,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2023-12-22 01:47:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 38784 states and 48213 transitions. [2023-12-22 01:47:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 01:47:20,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:47:20,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:47:20,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 01:47:20,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:47:20,696 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:47:20,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:47:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2096013130, now seen corresponding path program 1 times [2023-12-22 01:47:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:47:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212236657] [2023-12-22 01:47:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:47:20,697 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 [2023-12-22 01:47:20,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:47:20,698 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-22 01:47:20,698 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 (27)] Waiting until timeout for monitored process [2023-12-22 01:47:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:47:20,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:47:20,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:47:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:21,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:47:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:47:22,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:47:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212236657] [2023-12-22 01:47:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212236657] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:47:22,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:47:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:47:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38038932] [2023-12-22 01:47:22,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:47:22,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:47:22,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:47:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:47:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:47:22,051 INFO L87 Difference]: Start difference. First operand 38784 states and 48213 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 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) [2023-12-22 01:49:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:05,813 INFO L93 Difference]: Finished difference Result 44867 states and 58188 transitions. [2023-12-22 01:49:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 01:49:05,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-22 01:49:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:05,856 INFO L225 Difference]: With dead ends: 44867 [2023-12-22 01:49:05,857 INFO L226 Difference]: Without dead ends: 43363 [2023-12-22 01:49:05,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:49:05,864 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 6056 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 8089 mSolverCounterSat, 3329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6056 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3329 IncrementalHoareTripleChecker+Valid, 8089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:05,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6056 Valid, 481 Invalid, 11418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3329 Valid, 8089 Invalid, 0 Unknown, 0 Unchecked, 102.0s Time] [2023-12-22 01:49:05,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43363 states. [2023-12-22 01:49:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43363 to 41788. [2023-12-22 01:49:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.2458000287177524) internal successors, (52057), 41787 states have internal predecessors, (52057), 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) [2023-12-22 01:49:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 52057 transitions. [2023-12-22 01:49:07,185 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 52057 transitions. Word has length 131 [2023-12-22 01:49:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:07,186 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 52057 transitions. [2023-12-22 01:49:07,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 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) [2023-12-22 01:49:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 52057 transitions. [2023-12-22 01:49:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-22 01:49:07,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:07,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:07,198 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 (27)] Ended with exit code 0 [2023-12-22 01:49:07,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:07,396 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:07,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1888408497, now seen corresponding path program 1 times [2023-12-22 01:49:07,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:07,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816876575] [2023-12-22 01:49:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:07,398 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 [2023-12-22 01:49:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:07,399 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-22 01:49:07,416 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 (28)] Waiting until timeout for monitored process [2023-12-22 01:49:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:07,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:49:07,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:08,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:09,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:09,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816876575] [2023-12-22 01:49:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816876575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:09,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:09,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:49:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691909057] [2023-12-22 01:49:09,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:09,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:09,688 INFO L87 Difference]: Start difference. First operand 41788 states and 52057 transitions. Second operand has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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) [2023-12-22 01:49:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:12,959 INFO L93 Difference]: Finished difference Result 66736 states and 83048 transitions. [2023-12-22 01:49:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:49:12,959 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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 154 [2023-12-22 01:49:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:13,014 INFO L225 Difference]: With dead ends: 66736 [2023-12-22 01:49:13,015 INFO L226 Difference]: Without dead ends: 42230 [2023-12-22 01:49:13,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:49:13,032 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18350 mSDsluCounter, 7936 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18350 SdHoareTripleChecker+Valid, 9477 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:13,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18350 Valid, 9477 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 01:49:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42230 states. [2023-12-22 01:49:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42230 to 41788. [2023-12-22 01:49:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.2351505288852727) internal successors, (51612), 41787 states have internal predecessors, (51612), 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) [2023-12-22 01:49:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 51612 transitions. [2023-12-22 01:49:14,593 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 51612 transitions. Word has length 154 [2023-12-22 01:49:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:14,593 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 51612 transitions. [2023-12-22 01:49:14,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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) [2023-12-22 01:49:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 51612 transitions. [2023-12-22 01:49:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 01:49:14,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:14,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:14,606 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 (28)] Ended with exit code 0 [2023-12-22 01:49:14,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:14,804 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:14,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2052295263, now seen corresponding path program 1 times [2023-12-22 01:49:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:14,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967161451] [2023-12-22 01:49:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:14,805 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 [2023-12-22 01:49:14,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:14,806 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-22 01:49:14,807 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 (29)] Waiting until timeout for monitored process [2023-12-22 01:49:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:14,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:49:14,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:16,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:16,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:16,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967161451] [2023-12-22 01:49:16,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967161451] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:16,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:16,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:49:16,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489132625] [2023-12-22 01:49:16,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:16,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:16,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:16,942 INFO L87 Difference]: Start difference. First operand 41788 states and 51612 transitions. Second operand has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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) [2023-12-22 01:49:20,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:20,483 INFO L93 Difference]: Finished difference Result 65732 states and 81407 transitions. [2023-12-22 01:49:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:49:20,483 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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 155 [2023-12-22 01:49:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:20,548 INFO L225 Difference]: With dead ends: 65732 [2023-12-22 01:49:20,548 INFO L226 Difference]: Without dead ends: 49422 [2023-12-22 01:49:20,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:49:20,562 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 13762 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13762 SdHoareTripleChecker+Valid, 9759 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:20,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13762 Valid, 9759 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:49:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49422 states. [2023-12-22 01:49:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49422 to 41788. [2023-12-22 01:49:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.2301727851433495) internal successors, (51404), 41787 states have internal predecessors, (51404), 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) [2023-12-22 01:49:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 51404 transitions. [2023-12-22 01:49:22,329 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 51404 transitions. Word has length 155 [2023-12-22 01:49:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:22,329 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 51404 transitions. [2023-12-22 01:49:22,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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) [2023-12-22 01:49:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 51404 transitions. [2023-12-22 01:49:22,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-22 01:49:22,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:22,339 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:22,343 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 (29)] Ended with exit code 0 [2023-12-22 01:49:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:22,540 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:22,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1920798497, now seen corresponding path program 1 times [2023-12-22 01:49:22,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:22,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663851231] [2023-12-22 01:49:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:22,542 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-22 01:49:22,543 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 (30)] Waiting until timeout for monitored process [2023-12-22 01:49:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:22,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:49:22,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:24,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:24,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663851231] [2023-12-22 01:49:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663851231] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:24,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:24,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:49:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207780223] [2023-12-22 01:49:24,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:24,892 INFO L87 Difference]: Start difference. First operand 41788 states and 51404 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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) [2023-12-22 01:49:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:28,194 INFO L93 Difference]: Finished difference Result 63644 states and 78443 transitions. [2023-12-22 01:49:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:49:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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 156 [2023-12-22 01:49:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:28,240 INFO L225 Difference]: With dead ends: 63644 [2023-12-22 01:49:28,240 INFO L226 Difference]: Without dead ends: 47790 [2023-12-22 01:49:28,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:49:28,247 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18232 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18232 SdHoareTripleChecker+Valid, 8085 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:28,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18232 Valid, 8085 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:49:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47790 states. [2023-12-22 01:49:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47790 to 41788. [2023-12-22 01:49:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.2250035897190445) internal successors, (51188), 41787 states have internal predecessors, (51188), 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) [2023-12-22 01:49:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 51188 transitions. [2023-12-22 01:49:30,104 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 51188 transitions. Word has length 156 [2023-12-22 01:49:30,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:30,104 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 51188 transitions. [2023-12-22 01:49:30,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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) [2023-12-22 01:49:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 51188 transitions. [2023-12-22 01:49:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-22 01:49:30,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:30,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:30,118 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 (30)] Ended with exit code 0 [2023-12-22 01:49:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:30,315 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:30,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:30,315 INFO L85 PathProgramCache]: Analyzing trace with hash 180444655, now seen corresponding path program 1 times [2023-12-22 01:49:30,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:30,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689202406] [2023-12-22 01:49:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:30,316 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 [2023-12-22 01:49:30,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:30,317 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-22 01:49:30,318 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 (31)] Waiting until timeout for monitored process [2023-12-22 01:49:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:30,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:49:30,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:31,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:32,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:32,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689202406] [2023-12-22 01:49:32,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689202406] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:32,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:32,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:49:32,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442192478] [2023-12-22 01:49:32,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:32,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:32,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:32,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:32,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:32,492 INFO L87 Difference]: Start difference. First operand 41788 states and 51188 transitions. Second operand has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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) [2023-12-22 01:49:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:35,725 INFO L93 Difference]: Finished difference Result 61316 states and 75167 transitions. [2023-12-22 01:49:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:49:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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 157 [2023-12-22 01:49:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:35,778 INFO L225 Difference]: With dead ends: 61316 [2023-12-22 01:49:35,778 INFO L226 Difference]: Without dead ends: 45990 [2023-12-22 01:49:35,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:49:35,794 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 19820 mSDsluCounter, 9491 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19820 SdHoareTripleChecker+Valid, 11032 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:35,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19820 Valid, 11032 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:49:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45990 states. [2023-12-22 01:49:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45990 to 41788. [2023-12-22 01:49:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.219738668453549) internal successors, (50968), 41787 states have internal predecessors, (50968), 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) [2023-12-22 01:49:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 50968 transitions. [2023-12-22 01:49:37,837 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 50968 transitions. Word has length 157 [2023-12-22 01:49:37,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:37,837 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 50968 transitions. [2023-12-22 01:49:37,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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) [2023-12-22 01:49:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 50968 transitions. [2023-12-22 01:49:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:49:37,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:37,847 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:37,851 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 (31)] Ended with exit code 0 [2023-12-22 01:49:38,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:38,048 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:38,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:38,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1029455779, now seen corresponding path program 1 times [2023-12-22 01:49:38,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:38,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298400842] [2023-12-22 01:49:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:38,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:38,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:38,051 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-22 01:49:38,059 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 (32)] Waiting until timeout for monitored process [2023-12-22 01:49:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:38,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:49:38,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:40,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:40,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:40,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298400842] [2023-12-22 01:49:40,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298400842] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:40,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:40,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:49:40,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657017607] [2023-12-22 01:49:40,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:40,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:40,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:40,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:40,685 INFO L87 Difference]: Start difference. First operand 41788 states and 50968 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2023-12-22 01:49:49,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:49,087 INFO L93 Difference]: Finished difference Result 67932 states and 82613 transitions. [2023-12-22 01:49:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:49:49,087 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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 158 [2023-12-22 01:49:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:49,151 INFO L225 Difference]: With dead ends: 67932 [2023-12-22 01:49:49,151 INFO L226 Difference]: Without dead ends: 61434 [2023-12-22 01:49:49,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:49:49,160 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 5286 mSDsluCounter, 21142 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5286 SdHoareTripleChecker+Valid, 22806 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:49,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5286 Valid, 22806 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 01:49:49,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61434 states. [2023-12-22 01:49:50,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61434 to 30428. [2023-12-22 01:49:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30428 states, 30426 states have (on average 1.2283244593439822) internal successors, (37373), 30427 states have internal predecessors, (37373), 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) [2023-12-22 01:49:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30428 states to 30428 states and 37373 transitions. [2023-12-22 01:49:50,811 INFO L78 Accepts]: Start accepts. Automaton has 30428 states and 37373 transitions. Word has length 158 [2023-12-22 01:49:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:50,811 INFO L495 AbstractCegarLoop]: Abstraction has 30428 states and 37373 transitions. [2023-12-22 01:49:50,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2023-12-22 01:49:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 30428 states and 37373 transitions. [2023-12-22 01:49:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:49:50,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:50,817 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:50,821 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 01:49:51,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:51,020 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:51,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:51,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1216225681, now seen corresponding path program 1 times [2023-12-22 01:49:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500233103] [2023-12-22 01:49:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:51,021 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 [2023-12-22 01:49:51,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:51,022 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-22 01:49:51,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 01:49:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:51,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:49:51,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:49:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:52,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:49:53,422 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:49:53,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:49:53,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500233103] [2023-12-22 01:49:53,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500233103] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:49:53,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:49:53,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:49:53,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366281475] [2023-12-22 01:49:53,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:49:53,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:49:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:49:53,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:49:53,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:49:53,424 INFO L87 Difference]: Start difference. First operand 30428 states and 37373 transitions. Second operand has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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) [2023-12-22 01:49:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:49:57,144 INFO L93 Difference]: Finished difference Result 42826 states and 52460 transitions. [2023-12-22 01:49:57,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:49:57,145 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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 158 [2023-12-22 01:49:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:49:57,179 INFO L225 Difference]: With dead ends: 42826 [2023-12-22 01:49:57,180 INFO L226 Difference]: Without dead ends: 32146 [2023-12-22 01:49:57,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:49:57,193 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18351 mSDsluCounter, 9436 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18351 SdHoareTripleChecker+Valid, 10977 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:49:57,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18351 Valid, 10977 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 01:49:57,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32146 states. [2023-12-22 01:49:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32146 to 30428. [2023-12-22 01:49:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30428 states, 30426 states have (on average 1.2229343324788011) internal successors, (37209), 30427 states have internal predecessors, (37209), 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) [2023-12-22 01:49:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30428 states to 30428 states and 37209 transitions. [2023-12-22 01:49:58,618 INFO L78 Accepts]: Start accepts. Automaton has 30428 states and 37209 transitions. Word has length 158 [2023-12-22 01:49:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:49:58,618 INFO L495 AbstractCegarLoop]: Abstraction has 30428 states and 37209 transitions. [2023-12-22 01:49:58,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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) [2023-12-22 01:49:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 30428 states and 37209 transitions. [2023-12-22 01:49:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:49:58,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:49:58,624 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:49:58,627 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 (33)] Ended with exit code 0 [2023-12-22 01:49:58,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:49:58,825 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:49:58,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:49:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash 806814079, now seen corresponding path program 1 times [2023-12-22 01:49:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:49:58,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393670388] [2023-12-22 01:49:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:49:58,826 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 [2023-12-22 01:49:58,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:49:58,827 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-22 01:49:58,828 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 (34)] Waiting until timeout for monitored process [2023-12-22 01:49:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:49:58,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:49:58,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:50:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:00,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:50:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:01,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:50:01,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393670388] [2023-12-22 01:50:01,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393670388] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:50:01,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:50:01,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:50:01,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857704993] [2023-12-22 01:50:01,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:50:01,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:50:01,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:50:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:50:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:50:01,558 INFO L87 Difference]: Start difference. First operand 30428 states and 37209 transitions. Second operand has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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) [2023-12-22 01:50:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:50:08,608 INFO L93 Difference]: Finished difference Result 48544 states and 58649 transitions. [2023-12-22 01:50:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:50:08,609 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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 159 [2023-12-22 01:50:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:50:08,648 INFO L225 Difference]: With dead ends: 48544 [2023-12-22 01:50:08,648 INFO L226 Difference]: Without dead ends: 36054 [2023-12-22 01:50:08,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:50:08,660 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 6777 mSDsluCounter, 20509 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6777 SdHoareTripleChecker+Valid, 22140 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:50:08,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6777 Valid, 22140 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 01:50:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36054 states. [2023-12-22 01:50:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36054 to 20710. [2023-12-22 01:50:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20710 states, 20708 states have (on average 1.2318910565964845) internal successors, (25510), 20709 states have internal predecessors, (25510), 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) [2023-12-22 01:50:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20710 states to 20710 states and 25510 transitions. [2023-12-22 01:50:09,810 INFO L78 Accepts]: Start accepts. Automaton has 20710 states and 25510 transitions. Word has length 159 [2023-12-22 01:50:09,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:50:09,810 INFO L495 AbstractCegarLoop]: Abstraction has 20710 states and 25510 transitions. [2023-12-22 01:50:09,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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) [2023-12-22 01:50:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 20710 states and 25510 transitions. [2023-12-22 01:50:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:50:09,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:50:09,814 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:50:09,818 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 (34)] Ended with exit code 0 [2023-12-22 01:50:10,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:50:10,014 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:50:10,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:50:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1161519651, now seen corresponding path program 1 times [2023-12-22 01:50:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:50:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314984854] [2023-12-22 01:50:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:50:10,016 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 [2023-12-22 01:50:10,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:50:10,017 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-22 01:50:10,033 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 (35)] Waiting until timeout for monitored process [2023-12-22 01:50:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:50:10,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:50:10,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:50:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:12,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:50:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:12,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:50:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314984854] [2023-12-22 01:50:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314984854] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:50:12,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:50:12,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:50:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79525679] [2023-12-22 01:50:12,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:50:12,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:50:12,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:50:12,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:50:12,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:50:12,839 INFO L87 Difference]: Start difference. First operand 20710 states and 25510 transitions. Second operand has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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) [2023-12-22 01:50:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:50:21,695 INFO L93 Difference]: Finished difference Result 53982 states and 64979 transitions. [2023-12-22 01:50:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:50:21,696 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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 159 [2023-12-22 01:50:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:50:21,754 INFO L225 Difference]: With dead ends: 53982 [2023-12-22 01:50:21,754 INFO L226 Difference]: Without dead ends: 50320 [2023-12-22 01:50:21,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:50:21,768 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 3760 mSDsluCounter, 24229 mSDsCounter, 0 mSdLazyCounter, 2816 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3760 SdHoareTripleChecker+Valid, 25880 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:50:21,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3760 Valid, 25880 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2816 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-22 01:50:21,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50320 states. [2023-12-22 01:50:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50320 to 42729. [2023-12-22 01:50:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42729 states, 42727 states have (on average 1.2082289886956725) internal successors, (51624), 42728 states have internal predecessors, (51624), 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) [2023-12-22 01:50:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42729 states to 42729 states and 51624 transitions. [2023-12-22 01:50:24,088 INFO L78 Accepts]: Start accepts. Automaton has 42729 states and 51624 transitions. Word has length 159 [2023-12-22 01:50:24,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:50:24,088 INFO L495 AbstractCegarLoop]: Abstraction has 42729 states and 51624 transitions. [2023-12-22 01:50:24,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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) [2023-12-22 01:50:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 42729 states and 51624 transitions. [2023-12-22 01:50:24,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:50:24,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:50:24,094 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:50:24,098 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 (35)] Ended with exit code 0 [2023-12-22 01:50:24,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:50:24,295 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:50:24,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:50:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash -849564765, now seen corresponding path program 1 times [2023-12-22 01:50:24,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:50:24,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811854207] [2023-12-22 01:50:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:50:24,296 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 [2023-12-22 01:50:24,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:50:24,298 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-22 01:50:24,305 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 (36)] Waiting until timeout for monitored process [2023-12-22 01:50:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:50:24,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:50:24,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:50:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:26,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:50:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:27,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:50:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811854207] [2023-12-22 01:50:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811854207] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:50:27,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:50:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:50:27,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214196729] [2023-12-22 01:50:27,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:50:27,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:50:27,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:50:27,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:50:27,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:50:27,127 INFO L87 Difference]: Start difference. First operand 42729 states and 51624 transitions. Second operand has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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) [2023-12-22 01:50:37,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:50:37,242 INFO L93 Difference]: Finished difference Result 74003 states and 88903 transitions. [2023-12-22 01:50:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:50:37,243 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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 159 [2023-12-22 01:50:37,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:50:37,308 INFO L225 Difference]: With dead ends: 74003 [2023-12-22 01:50:37,308 INFO L226 Difference]: Without dead ends: 64821 [2023-12-22 01:50:37,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:50:37,324 INFO L413 NwaCegarLoop]: 1674 mSDtfsCounter, 5258 mSDsluCounter, 24415 mSDsCounter, 0 mSdLazyCounter, 2906 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 26089 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:50:37,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5258 Valid, 26089 Invalid, 2924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-22 01:50:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64821 states. [2023-12-22 01:50:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64821 to 52576. [2023-12-22 01:50:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52576 states, 52574 states have (on average 1.2031041959904134) internal successors, (63252), 52575 states have internal predecessors, (63252), 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) [2023-12-22 01:50:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52576 states to 52576 states and 63252 transitions. [2023-12-22 01:50:40,542 INFO L78 Accepts]: Start accepts. Automaton has 52576 states and 63252 transitions. Word has length 159 [2023-12-22 01:50:40,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:50:40,543 INFO L495 AbstractCegarLoop]: Abstraction has 52576 states and 63252 transitions. [2023-12-22 01:50:40,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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) [2023-12-22 01:50:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 52576 states and 63252 transitions. [2023-12-22 01:50:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:50:40,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:50:40,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:50:40,555 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 01:50:40,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:50:40,751 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:50:40,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:50:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2141294977, now seen corresponding path program 1 times [2023-12-22 01:50:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:50:40,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873538654] [2023-12-22 01:50:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:50:40,753 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 [2023-12-22 01:50:40,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:50:40,754 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-22 01:50:40,754 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 (37)] Waiting until timeout for monitored process [2023-12-22 01:50:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:50:40,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:50:40,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:50:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:42,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:50:43,242 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:50:43,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:50:43,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873538654] [2023-12-22 01:50:43,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873538654] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:50:43,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:50:43,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:50:43,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028849604] [2023-12-22 01:50:43,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:50:43,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:50:43,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:50:43,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:50:43,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:50:43,245 INFO L87 Difference]: Start difference. First operand 52576 states and 63252 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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) [2023-12-22 01:50:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:50:54,502 INFO L93 Difference]: Finished difference Result 93180 states and 111370 transitions. [2023-12-22 01:50:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 01:50:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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 159 [2023-12-22 01:50:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:50:54,585 INFO L225 Difference]: With dead ends: 93180 [2023-12-22 01:50:54,586 INFO L226 Difference]: Without dead ends: 80692 [2023-12-22 01:50:54,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 01:50:54,598 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 3875 mSDsluCounter, 25954 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 27633 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:50:54,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3875 Valid, 27633 Invalid, 2994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-22 01:50:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80692 states. [2023-12-22 01:50:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80692 to 63134. [2023-12-22 01:50:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63134 states, 63132 states have (on average 1.1981720838877272) internal successors, (75643), 63133 states have internal predecessors, (75643), 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) [2023-12-22 01:50:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63134 states to 63134 states and 75643 transitions. [2023-12-22 01:50:58,477 INFO L78 Accepts]: Start accepts. Automaton has 63134 states and 75643 transitions. Word has length 159 [2023-12-22 01:50:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:50:58,477 INFO L495 AbstractCegarLoop]: Abstraction has 63134 states and 75643 transitions. [2023-12-22 01:50:58,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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) [2023-12-22 01:50:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 63134 states and 75643 transitions. [2023-12-22 01:50:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:50:58,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:50:58,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:50:58,487 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 (37)] Ended with exit code 0 [2023-12-22 01:50:58,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:50:58,688 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:50:58,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:50:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash 160437539, now seen corresponding path program 1 times [2023-12-22 01:50:58,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:50:58,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764425268] [2023-12-22 01:50:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:50:58,689 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 [2023-12-22 01:50:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:50:58,690 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-22 01:50:58,692 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 (38)] Waiting until timeout for monitored process [2023-12-22 01:50:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:50:58,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:50:58,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:51:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:51:00,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:51:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:51:01,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:51:01,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764425268] [2023-12-22 01:51:01,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764425268] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:51:01,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:51:01,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:51:01,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641465407] [2023-12-22 01:51:01,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:51:01,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:51:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:51:01,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:51:01,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:51:01,400 INFO L87 Difference]: Start difference. First operand 63134 states and 75643 transitions. Second operand has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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) [2023-12-22 01:51:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:51:16,874 INFO L93 Difference]: Finished difference Result 179286 states and 210913 transitions. [2023-12-22 01:51:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:51:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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 159 [2023-12-22 01:51:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:51:17,069 INFO L225 Difference]: With dead ends: 179286 [2023-12-22 01:51:17,070 INFO L226 Difference]: Without dead ends: 161904 [2023-12-22 01:51:17,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:51:17,094 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 5521 mSDsluCounter, 18117 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5521 SdHoareTripleChecker+Valid, 19817 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:51:17,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5521 Valid, 19817 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 01:51:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161904 states. [2023-12-22 01:51:25,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161904 to 119384. [2023-12-22 01:51:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119384 states, 119382 states have (on average 1.185195423095609) internal successors, (141491), 119383 states have internal predecessors, (141491), 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) [2023-12-22 01:51:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119384 states to 119384 states and 141491 transitions. [2023-12-22 01:51:25,534 INFO L78 Accepts]: Start accepts. Automaton has 119384 states and 141491 transitions. Word has length 159 [2023-12-22 01:51:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:51:25,534 INFO L495 AbstractCegarLoop]: Abstraction has 119384 states and 141491 transitions. [2023-12-22 01:51:25,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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) [2023-12-22 01:51:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 119384 states and 141491 transitions. [2023-12-22 01:51:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:51:25,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:51:25,582 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:51:25,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 01:51:25,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:51:25,786 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:51:25,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:51:25,787 INFO L85 PathProgramCache]: Analyzing trace with hash -488304027, now seen corresponding path program 1 times [2023-12-22 01:51:25,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:51:25,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384727607] [2023-12-22 01:51:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:51:25,787 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 [2023-12-22 01:51:25,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:51:25,789 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-22 01:51:25,793 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 (39)] Waiting until timeout for monitored process [2023-12-22 01:51:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:51:25,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:51:25,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:51:29,548 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:51:29,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:51:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:51:30,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:51:30,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384727607] [2023-12-22 01:51:30,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384727607] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:51:30,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:51:30,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:51:30,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405172278] [2023-12-22 01:51:30,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:51:30,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:51:30,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:51:30,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:51:30,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:51:30,927 INFO L87 Difference]: Start difference. First operand 119384 states and 141491 transitions. Second operand has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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) [2023-12-22 01:51:59,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:51:59,636 INFO L93 Difference]: Finished difference Result 163222 states and 193473 transitions. [2023-12-22 01:51:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:51:59,637 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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 217 [2023-12-22 01:51:59,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:51:59,810 INFO L225 Difference]: With dead ends: 163222 [2023-12-22 01:51:59,810 INFO L226 Difference]: Without dead ends: 152242 [2023-12-22 01:51:59,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:51:59,830 INFO L413 NwaCegarLoop]: 1800 mSDtfsCounter, 2515 mSDsluCounter, 39905 mSDsCounter, 0 mSdLazyCounter, 7998 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 41705 SdHoareTripleChecker+Invalid, 8018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 7998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:51:59,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 41705 Invalid, 8018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 7998 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-12-22 01:51:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152242 states. [2023-12-22 01:52:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152242 to 64219. [2023-12-22 01:52:05,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64219 states, 64217 states have (on average 1.193780463117243) internal successors, (76661), 64218 states have internal predecessors, (76661), 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) [2023-12-22 01:52:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64219 states to 64219 states and 76661 transitions. [2023-12-22 01:52:05,511 INFO L78 Accepts]: Start accepts. Automaton has 64219 states and 76661 transitions. Word has length 217 [2023-12-22 01:52:05,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:05,511 INFO L495 AbstractCegarLoop]: Abstraction has 64219 states and 76661 transitions. [2023-12-22 01:52:05,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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) [2023-12-22 01:52:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 64219 states and 76661 transitions. [2023-12-22 01:52:05,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:52:05,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:05,530 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:52:05,535 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 (39)] Ended with exit code 0 [2023-12-22 01:52:05,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:52:05,731 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:05,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1666075621, now seen corresponding path program 2 times [2023-12-22 01:52:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106804177] [2023-12-22 01:52:05,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:52:05,732 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 [2023-12-22 01:52:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:05,733 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-22 01:52:05,734 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 (40)] Waiting until timeout for monitored process [2023-12-22 01:52:05,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:52:05,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:52:05,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:52:05,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-22 01:52:08,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:08,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:08,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106804177] [2023-12-22 01:52:08,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106804177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:08,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:08,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:52:08,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794144376] [2023-12-22 01:52:08,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:08,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:52:08,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:08,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:52:08,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:08,204 INFO L87 Difference]: Start difference. First operand 64219 states and 76661 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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) [2023-12-22 01:52:13,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:13,706 INFO L93 Difference]: Finished difference Result 93835 states and 113085 transitions. [2023-12-22 01:52:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:52:13,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 217 [2023-12-22 01:52:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:13,780 INFO L225 Difference]: With dead ends: 93835 [2023-12-22 01:52:13,781 INFO L226 Difference]: Without dead ends: 79982 [2023-12-22 01:52:13,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:13,792 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 4869 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:13,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4869 Valid, 3452 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:52:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79982 states. [2023-12-22 01:52:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79982 to 64121. [2023-12-22 01:52:19,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64121 states, 64119 states have (on average 1.187198802227109) internal successors, (76122), 64120 states have internal predecessors, (76122), 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) [2023-12-22 01:52:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64121 states to 64121 states and 76122 transitions. [2023-12-22 01:52:19,214 INFO L78 Accepts]: Start accepts. Automaton has 64121 states and 76122 transitions. Word has length 217 [2023-12-22 01:52:19,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:19,214 INFO L495 AbstractCegarLoop]: Abstraction has 64121 states and 76122 transitions. [2023-12-22 01:52:19,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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) [2023-12-22 01:52:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 64121 states and 76122 transitions. [2023-12-22 01:52:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:52:19,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:19,230 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:52:19,235 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 01:52:19,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:52:19,431 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:19,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2020781193, now seen corresponding path program 2 times [2023-12-22 01:52:19,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:19,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852839761] [2023-12-22 01:52:19,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:52:19,432 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 [2023-12-22 01:52:19,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:19,433 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-22 01:52:19,434 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 (41)] Waiting until timeout for monitored process [2023-12-22 01:52:19,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:52:19,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:52:19,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:52:19,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-12-22 01:52:22,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:22,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852839761] [2023-12-22 01:52:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852839761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:22,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:22,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:52:22,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911851179] [2023-12-22 01:52:22,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:22,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:52:22,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:52:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:22,006 INFO L87 Difference]: Start difference. First operand 64121 states and 76122 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 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) [2023-12-22 01:52:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:27,414 INFO L93 Difference]: Finished difference Result 86408 states and 103802 transitions. [2023-12-22 01:52:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:52:27,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 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 217 [2023-12-22 01:52:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:27,613 INFO L225 Difference]: With dead ends: 86408 [2023-12-22 01:52:27,613 INFO L226 Difference]: Without dead ends: 81633 [2023-12-22 01:52:27,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:27,621 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 4694 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:27,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4694 Valid, 3515 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:52:27,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81633 states. [2023-12-22 01:52:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81633 to 68184. [2023-12-22 01:52:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68184 states, 68182 states have (on average 1.185107506379983) internal successors, (80803), 68183 states have internal predecessors, (80803), 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) [2023-12-22 01:52:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68184 states to 68184 states and 80803 transitions. [2023-12-22 01:52:33,135 INFO L78 Accepts]: Start accepts. Automaton has 68184 states and 80803 transitions. Word has length 217 [2023-12-22 01:52:33,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:33,135 INFO L495 AbstractCegarLoop]: Abstraction has 68184 states and 80803 transitions. [2023-12-22 01:52:33,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 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) [2023-12-22 01:52:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 68184 states and 80803 transitions. [2023-12-22 01:52:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:52:33,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:33,153 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:52:33,156 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 (41)] Ended with exit code 0 [2023-12-22 01:52:33,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:52:33,354 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:33,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash 9696777, now seen corresponding path program 2 times [2023-12-22 01:52:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:33,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296600109] [2023-12-22 01:52:33,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:52:33,355 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 [2023-12-22 01:52:33,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:33,356 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-22 01:52:33,357 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 (42)] Waiting until timeout for monitored process [2023-12-22 01:52:33,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:52:33,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:52:33,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:52:33,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-22 01:52:36,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:36,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:36,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296600109] [2023-12-22 01:52:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296600109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:52:36,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476531910] [2023-12-22 01:52:36,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:36,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:52:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:52:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:36,034 INFO L87 Difference]: Start difference. First operand 68184 states and 80803 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2023-12-22 01:52:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:41,834 INFO L93 Difference]: Finished difference Result 94947 states and 114013 transitions. [2023-12-22 01:52:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:52:41,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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 217 [2023-12-22 01:52:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:41,938 INFO L225 Difference]: With dead ends: 94947 [2023-12-22 01:52:41,938 INFO L226 Difference]: Without dead ends: 85598 [2023-12-22 01:52:41,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:41,952 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 6151 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6151 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:41,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6151 Valid, 3513 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:52:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85598 states. [2023-12-22 01:52:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85598 to 76274. [2023-12-22 01:52:48,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76274 states, 76272 states have (on average 1.181757394587791) internal successors, (90135), 76273 states have internal predecessors, (90135), 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) [2023-12-22 01:52:48,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76274 states to 76274 states and 90135 transitions. [2023-12-22 01:52:48,145 INFO L78 Accepts]: Start accepts. Automaton has 76274 states and 90135 transitions. Word has length 217 [2023-12-22 01:52:48,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:52:48,145 INFO L495 AbstractCegarLoop]: Abstraction has 76274 states and 90135 transitions. [2023-12-22 01:52:48,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2023-12-22 01:52:48,146 INFO L276 IsEmpty]: Start isEmpty. Operand 76274 states and 90135 transitions. [2023-12-22 01:52:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:52:48,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:52:48,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:52:48,168 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 (42)] Ended with exit code 0 [2023-12-22 01:52:48,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:52:48,365 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:52:48,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:52:48,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1282033435, now seen corresponding path program 2 times [2023-12-22 01:52:48,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:52:48,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698698294] [2023-12-22 01:52:48,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:52:48,367 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 [2023-12-22 01:52:48,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:52:48,368 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-22 01:52:48,369 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 (43)] Waiting until timeout for monitored process [2023-12-22 01:52:48,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:52:48,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:52:48,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:52:48,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:52:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-22 01:52:51,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:52:51,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:52:51,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698698294] [2023-12-22 01:52:51,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698698294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:52:51,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:52:51,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:52:51,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296086255] [2023-12-22 01:52:51,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:52:51,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:52:51,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:52:51,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:52:51,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:51,098 INFO L87 Difference]: Start difference. First operand 76274 states and 90135 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:52:57,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:52:57,361 INFO L93 Difference]: Finished difference Result 97368 states and 116344 transitions. [2023-12-22 01:52:57,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:52:57,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2023-12-22 01:52:57,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:52:57,452 INFO L225 Difference]: With dead ends: 97368 [2023-12-22 01:52:57,452 INFO L226 Difference]: Without dead ends: 91571 [2023-12-22 01:52:57,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:52:57,466 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 4746 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:52:57,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4746 Valid, 3564 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:52:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91571 states. [2023-12-22 01:53:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91571 to 82077. [2023-12-22 01:53:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82077 states, 82075 states have (on average 1.1802375875723423) internal successors, (96868), 82076 states have internal predecessors, (96868), 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) [2023-12-22 01:53:03,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82077 states to 82077 states and 96868 transitions. [2023-12-22 01:53:03,610 INFO L78 Accepts]: Start accepts. Automaton has 82077 states and 96868 transitions. Word has length 217 [2023-12-22 01:53:03,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:03,611 INFO L495 AbstractCegarLoop]: Abstraction has 82077 states and 96868 transitions. [2023-12-22 01:53:03,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:53:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 82077 states and 96868 transitions. [2023-12-22 01:53:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:53:03,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:03,629 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:53:03,632 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 (43)] Ended with exit code 0 [2023-12-22 01:53:03,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:53:03,830 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:03,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1019699081, now seen corresponding path program 2 times [2023-12-22 01:53:03,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:03,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531577833] [2023-12-22 01:53:03,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:53:03,831 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 [2023-12-22 01:53:03,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:03,832 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-22 01:53:03,833 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 (44)] Waiting until timeout for monitored process [2023-12-22 01:53:03,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:53:03,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:53:03,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:53:03,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-22 01:53:06,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:53:06,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:06,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531577833] [2023-12-22 01:53:06,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531577833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:53:06,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:53:06,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:53:06,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544573671] [2023-12-22 01:53:06,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:53:06,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:53:06,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:06,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:53:06,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:53:06,400 INFO L87 Difference]: Start difference. First operand 82077 states and 96868 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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) [2023-12-22 01:53:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:13,108 INFO L93 Difference]: Finished difference Result 102309 states and 122006 transitions. [2023-12-22 01:53:13,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:53:13,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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 217 [2023-12-22 01:53:13,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:13,193 INFO L225 Difference]: With dead ends: 102309 [2023-12-22 01:53:13,193 INFO L226 Difference]: Without dead ends: 96987 [2023-12-22 01:53:13,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:53:13,206 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 4735 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 3486 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:13,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4735 Valid, 3486 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:53:13,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96987 states. [2023-12-22 01:53:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96987 to 87295. [2023-12-22 01:53:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87295 states, 87293 states have (on average 1.1789948793144926) internal successors, (102918), 87294 states have internal predecessors, (102918), 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) [2023-12-22 01:53:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87295 states to 87295 states and 102918 transitions. [2023-12-22 01:53:20,352 INFO L78 Accepts]: Start accepts. Automaton has 87295 states and 102918 transitions. Word has length 217 [2023-12-22 01:53:20,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:53:20,352 INFO L495 AbstractCegarLoop]: Abstraction has 87295 states and 102918 transitions. [2023-12-22 01:53:20,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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) [2023-12-22 01:53:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand 87295 states and 102918 transitions. [2023-12-22 01:53:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:53:20,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:53:20,377 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:53:20,381 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 (44)] Ended with exit code 0 [2023-12-22 01:53:20,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:53:20,578 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:53:20,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:53:20,579 INFO L85 PathProgramCache]: Analyzing trace with hash -496618593, now seen corresponding path program 1 times [2023-12-22 01:53:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:53:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287850718] [2023-12-22 01:53:20,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:53:20,579 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 [2023-12-22 01:53:20,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:53:20,580 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-22 01:53:20,585 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 (45)] Waiting until timeout for monitored process [2023-12-22 01:53:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:53:20,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:53:20,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:53:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:24,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:53:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:53:25,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:53:25,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287850718] [2023-12-22 01:53:25,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287850718] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:53:25,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:53:25,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:53:25,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264015632] [2023-12-22 01:53:25,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:53:25,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:53:25,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:53:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:53:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:53:25,494 INFO L87 Difference]: Start difference. First operand 87295 states and 102918 transitions. Second operand has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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) [2023-12-22 01:53:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:53:58,307 INFO L93 Difference]: Finished difference Result 213606 states and 249369 transitions. [2023-12-22 01:53:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:53:58,308 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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 218 [2023-12-22 01:53:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:53:58,588 INFO L225 Difference]: With dead ends: 213606 [2023-12-22 01:53:58,588 INFO L226 Difference]: Without dead ends: 204298 [2023-12-22 01:53:58,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:53:58,632 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 7259 mSDsluCounter, 34251 mSDsCounter, 0 mSdLazyCounter, 6787 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7259 SdHoareTripleChecker+Valid, 36029 SdHoareTripleChecker+Invalid, 6812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:53:58,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7259 Valid, 36029 Invalid, 6812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 6787 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-22 01:53:58,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204298 states. [2023-12-22 01:54:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204298 to 93778. [2023-12-22 01:54:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93778 states, 93776 states have (on average 1.1764097423647841) internal successors, (110319), 93777 states have internal predecessors, (110319), 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) [2023-12-22 01:54:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93778 states to 93778 states and 110319 transitions. [2023-12-22 01:54:08,002 INFO L78 Accepts]: Start accepts. Automaton has 93778 states and 110319 transitions. Word has length 218 [2023-12-22 01:54:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:08,003 INFO L495 AbstractCegarLoop]: Abstraction has 93778 states and 110319 transitions. [2023-12-22 01:54:08,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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) [2023-12-22 01:54:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 93778 states and 110319 transitions. [2023-12-22 01:54:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:54:08,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:08,028 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:54:08,036 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:08,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:54:08,233 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:08,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1584273951, now seen corresponding path program 1 times [2023-12-22 01:54:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:08,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524719463] [2023-12-22 01:54:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:08,235 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 [2023-12-22 01:54:08,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:08,236 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-22 01:54:08,245 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 (46)] Waiting until timeout for monitored process [2023-12-22 01:54:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:08,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:54:08,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:11,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:12,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:12,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524719463] [2023-12-22 01:54:12,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524719463] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:12,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:12,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:54:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876398019] [2023-12-22 01:54:12,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:12,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:54:12,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:12,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:54:12,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:54:12,604 INFO L87 Difference]: Start difference. First operand 93778 states and 110319 transitions. Second operand has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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) [2023-12-22 01:54:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:54:42,043 INFO L93 Difference]: Finished difference Result 140681 states and 165232 transitions. [2023-12-22 01:54:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 01:54:42,044 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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 218 [2023-12-22 01:54:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:54:42,194 INFO L225 Difference]: With dead ends: 140681 [2023-12-22 01:54:42,194 INFO L226 Difference]: Without dead ends: 121971 [2023-12-22 01:54:42,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4492 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 01:54:42,226 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 5700 mSDsluCounter, 34499 mSDsCounter, 0 mSdLazyCounter, 7037 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 36298 SdHoareTripleChecker+Invalid, 7063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:54:42,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5700 Valid, 36298 Invalid, 7063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 7037 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-22 01:54:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121971 states. [2023-12-22 01:54:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121971 to 99938. [2023-12-22 01:54:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99938 states, 99936 states have (on average 1.1755623599103426) internal successors, (117481), 99937 states have internal predecessors, (117481), 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) [2023-12-22 01:54:51,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99938 states to 99938 states and 117481 transitions. [2023-12-22 01:54:51,610 INFO L78 Accepts]: Start accepts. Automaton has 99938 states and 117481 transitions. Word has length 218 [2023-12-22 01:54:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:54:51,610 INFO L495 AbstractCegarLoop]: Abstraction has 99938 states and 117481 transitions. [2023-12-22 01:54:51,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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) [2023-12-22 01:54:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 99938 states and 117481 transitions. [2023-12-22 01:54:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:54:51,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:54:51,638 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:54:51,642 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 01:54:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:54:51,839 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:54:51,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:54:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash 195343043, now seen corresponding path program 1 times [2023-12-22 01:54:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:54:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55283016] [2023-12-22 01:54:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:54:51,840 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 [2023-12-22 01:54:51,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:54:51,841 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-22 01:54:51,842 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 (47)] Waiting until timeout for monitored process [2023-12-22 01:54:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:54:52,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:54:52,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:54:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:54,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:54:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:54:56,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:54:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55283016] [2023-12-22 01:54:56,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55283016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:54:56,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:54:56,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:54:56,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660957378] [2023-12-22 01:54:56,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:54:56,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:54:56,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:54:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:54:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:54:56,021 INFO L87 Difference]: Start difference. First operand 99938 states and 117481 transitions. Second operand has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 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) [2023-12-22 01:55:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:55:31,779 INFO L93 Difference]: Finished difference Result 151862 states and 177777 transitions. [2023-12-22 01:55:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 01:55:31,780 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 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 218 [2023-12-22 01:55:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:55:31,966 INFO L225 Difference]: With dead ends: 151862 [2023-12-22 01:55:31,966 INFO L226 Difference]: Without dead ends: 131239 [2023-12-22 01:55:31,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6254 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 01:55:31,999 INFO L413 NwaCegarLoop]: 1818 mSDtfsCounter, 7298 mSDsluCounter, 38208 mSDsCounter, 0 mSdLazyCounter, 8007 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7298 SdHoareTripleChecker+Valid, 40026 SdHoareTripleChecker+Invalid, 8041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 8007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:55:32,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7298 Valid, 40026 Invalid, 8041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 8007 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2023-12-22 01:55:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131239 states. [2023-12-22 01:55:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131239 to 104999. [2023-12-22 01:55:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104999 states, 104997 states have (on average 1.1744335552444356) internal successors, (123312), 104998 states have internal predecessors, (123312), 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) [2023-12-22 01:55:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104999 states to 104999 states and 123312 transitions. [2023-12-22 01:55:41,605 INFO L78 Accepts]: Start accepts. Automaton has 104999 states and 123312 transitions. Word has length 218 [2023-12-22 01:55:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:55:41,605 INFO L495 AbstractCegarLoop]: Abstraction has 104999 states and 123312 transitions. [2023-12-22 01:55:41,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 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) [2023-12-22 01:55:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 104999 states and 123312 transitions. [2023-12-22 01:55:41,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:55:41,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:55:41,623 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:55:41,628 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 (47)] Ended with exit code 0 [2023-12-22 01:55:41,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:55:41,824 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:55:41,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:55:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1465392993, now seen corresponding path program 1 times [2023-12-22 01:55:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:55:41,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185679793] [2023-12-22 01:55:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:55:41,825 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 [2023-12-22 01:55:41,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:55:41,826 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-22 01:55:41,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 01:55:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:55:41,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:55:41,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:55:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:44,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:55:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:55:45,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:55:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185679793] [2023-12-22 01:55:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185679793] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:55:45,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:55:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:55:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213390271] [2023-12-22 01:55:45,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:55:45,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:55:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:55:45,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:55:45,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:55:45,549 INFO L87 Difference]: Start difference. First operand 104999 states and 123312 transitions. Second operand has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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) [2023-12-22 01:56:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:56:24,633 INFO L93 Difference]: Finished difference Result 163185 states and 190141 transitions. [2023-12-22 01:56:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:56:24,634 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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 218 [2023-12-22 01:56:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:56:24,791 INFO L225 Difference]: With dead ends: 163185 [2023-12-22 01:56:24,792 INFO L226 Difference]: Without dead ends: 140417 [2023-12-22 01:56:24,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:56:24,830 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 3881 mSDsluCounter, 41291 mSDsCounter, 0 mSdLazyCounter, 8809 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3881 SdHoareTripleChecker+Valid, 43090 SdHoareTripleChecker+Invalid, 8838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 8809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:56:24,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3881 Valid, 43090 Invalid, 8838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 8809 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-22 01:56:24,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140417 states. [2023-12-22 01:56:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140417 to 108002. [2023-12-22 01:56:34,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108002 states, 108000 states have (on average 1.1731574074074074) internal successors, (126701), 108001 states have internal predecessors, (126701), 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) [2023-12-22 01:56:35,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108002 states to 108002 states and 126701 transitions. [2023-12-22 01:56:35,133 INFO L78 Accepts]: Start accepts. Automaton has 108002 states and 126701 transitions. Word has length 218 [2023-12-22 01:56:35,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:56:35,133 INFO L495 AbstractCegarLoop]: Abstraction has 108002 states and 126701 transitions. [2023-12-22 01:56:35,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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) [2023-12-22 01:56:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 108002 states and 126701 transitions. [2023-12-22 01:56:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-22 01:56:35,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:56:35,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 01:56:35,156 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 (48)] Ended with exit code 0 [2023-12-22 01:56:35,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:56:35,353 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:56:35,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:56:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1055738643, now seen corresponding path program 1 times [2023-12-22 01:56:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:56:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542099860] [2023-12-22 01:56:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:56:35,354 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 [2023-12-22 01:56:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:56:35,355 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-22 01:56:35,356 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 (49)] Waiting until timeout for monitored process [2023-12-22 01:56:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:56:35,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:56:35,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:56:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:39,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:56:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:56:40,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:56:40,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542099860] [2023-12-22 01:56:40,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542099860] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:56:40,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:56:40,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:56:40,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299504833] [2023-12-22 01:56:40,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:56:40,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:56:40,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:56:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:56:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:56:40,758 INFO L87 Difference]: Start difference. First operand 108002 states and 126701 transitions. Second operand has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 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) [2023-12-22 01:57:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:57:25,091 INFO L93 Difference]: Finished difference Result 266805 states and 309900 transitions. [2023-12-22 01:57:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:57:25,091 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 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 219 [2023-12-22 01:57:25,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:57:25,436 INFO L225 Difference]: With dead ends: 266805 [2023-12-22 01:57:25,436 INFO L226 Difference]: Without dead ends: 245295 [2023-12-22 01:57:25,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:57:25,496 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 4073 mSDsluCounter, 37174 mSDsCounter, 0 mSdLazyCounter, 7327 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 38917 SdHoareTripleChecker+Invalid, 7350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:57:25,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 38917 Invalid, 7350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 7327 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-12-22 01:57:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245295 states. [2023-12-22 01:57:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245295 to 215565. [2023-12-22 01:57:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215565 states, 215563 states have (on average 1.1656638662479182) internal successors, (251274), 215564 states have internal predecessors, (251274), 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)