/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:54:03,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:54:03,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:54:04,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:54:04,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:54:04,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:54:04,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:54:04,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:54:04,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:54:04,022 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:54:04,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:54:04,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:54:04,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:54:04,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:54:04,024 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:54:04,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:54:04,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:54:04,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:54:04,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:54:04,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:54:04,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:54:04,027 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:54:04,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:54:04,028 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:54:04,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:54:04,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:54:04,029 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:54:04,030 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:54:04,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:54:04,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:54:04,030 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:54:04,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:54:04,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:54:04,031 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:54:04,031 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:54:04,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:54:04,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:54:04,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:54:04,242 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:54:04,242 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:54:04,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-12-25 07:54:05,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:54:05,421 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:54:05,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-12-25 07:54:05,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a82c4815/9d50eee7619140e99ccd8008ffca166e/FLAGf847ac07e [2023-12-25 07:54:05,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a82c4815/9d50eee7619140e99ccd8008ffca166e [2023-12-25 07:54:05,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:54:05,444 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:54:05,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:54:05,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:54:05,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:54:05,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bbdbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05, skipping insertion in model container [2023-12-25 07:54:05,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:54:05,769 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2023-12-25 07:54:05,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:54:05,783 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:54:05,846 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c[20019,20032] [2023-12-25 07:54:05,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:54:05,857 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:54:05,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05 WrapperNode [2023-12-25 07:54:05,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:54:05,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:54:05,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:54:05,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:54:05,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,901 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 429 [2023-12-25 07:54:05,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:54:05,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:54:05,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:54:05,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:54:05,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,931 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 07:54:05,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:54:05,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:54:05,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:54:05,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:54:05,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (1/1) ... [2023-12-25 07:54:05,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:54:05,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:54:05,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 07:54:06,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 07:54:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:54:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:54:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:54:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:54:06,126 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:54:06,127 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:54:06,545 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:54:06,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:54:06,574 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 07:54:06,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:54:06 BoogieIcfgContainer [2023-12-25 07:54:06,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:54:06,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:54:06,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:54:06,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:54:06,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:54:05" (1/3) ... [2023-12-25 07:54:06,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bec900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:54:06, skipping insertion in model container [2023-12-25 07:54:06,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:54:05" (2/3) ... [2023-12-25 07:54:06,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bec900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:54:06, skipping insertion in model container [2023-12-25 07:54:06,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:54:06" (3/3) ... [2023-12-25 07:54:06,580 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-12-25 07:54:06,591 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:54:06,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:54:06,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:54:06,638 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;@509d55b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:54:06,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:54:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-25 07:54:06,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:06,650 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] [2023-12-25 07:54:06,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:06,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 61708070, now seen corresponding path program 1 times [2023-12-25 07:54:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:06,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513460401] [2023-12-25 07:54:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:06,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:06,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:06,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:06,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 07:54:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:06,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:54:06,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:06,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:06,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:06,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513460401] [2023-12-25 07:54:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513460401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:06,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:06,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:54:06,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455936245] [2023-12-25 07:54:06,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:06,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:54:06,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:06,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:54:06,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:54:06,797 INFO L87 Difference]: Start difference. First operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 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 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:06,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:06,829 INFO L93 Difference]: Finished difference Result 165 states and 286 transitions. [2023-12-25 07:54:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:54:06,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-12-25 07:54:06,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:06,838 INFO L225 Difference]: With dead ends: 165 [2023-12-25 07:54:06,838 INFO L226 Difference]: Without dead ends: 107 [2023-12-25 07:54:06,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:54:06,842 INFO L413 NwaCegarLoop]: 188 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, 188 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 [2023-12-25 07:54:06,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-25 07:54:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-25 07:54:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.7924528301886793) internal successors, (190), 106 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 190 transitions. [2023-12-25 07:54:06,868 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 190 transitions. Word has length 24 [2023-12-25 07:54:06,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:06,868 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 190 transitions. [2023-12-25 07:54:06,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 190 transitions. [2023-12-25 07:54:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-25 07:54:06,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:06,870 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] [2023-12-25 07:54:06,873 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 [2023-12-25 07:54:07,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:07,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:07,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash 484409896, now seen corresponding path program 1 times [2023-12-25 07:54:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819832611] [2023-12-25 07:54:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:07,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:07,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:07,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:07,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 07:54:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:07,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:54:07,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:07,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:07,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819832611] [2023-12-25 07:54:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819832611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:07,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:07,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:54:07,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500174521] [2023-12-25 07:54:07,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:07,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:54:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:54:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:54:07,176 INFO L87 Difference]: Start difference. First operand 107 states and 190 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:07,237 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2023-12-25 07:54:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:54:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-12-25 07:54:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:07,239 INFO L225 Difference]: With dead ends: 163 [2023-12-25 07:54:07,239 INFO L226 Difference]: Without dead ends: 107 [2023-12-25 07:54:07,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:54:07,240 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:07,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-25 07:54:07,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-25 07:54:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.320754716981132) internal successors, (140), 106 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2023-12-25 07:54:07,246 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 24 [2023-12-25 07:54:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:07,246 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2023-12-25 07:54:07,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2023-12-25 07:54:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 07:54:07,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:07,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:07,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:07,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:07,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:07,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash 456528988, now seen corresponding path program 1 times [2023-12-25 07:54:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:07,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707025879] [2023-12-25 07:54:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:07,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:07,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:07,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:07,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 07:54:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:07,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:54:07,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:08,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:08,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:08,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707025879] [2023-12-25 07:54:08,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707025879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:08,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 07:54:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229846399] [2023-12-25 07:54:08,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:08,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:54:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:54:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:54:08,652 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:08,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:08,886 INFO L93 Difference]: Finished difference Result 531 states and 828 transitions. [2023-12-25 07:54:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:54:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-25 07:54:08,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:08,890 INFO L225 Difference]: With dead ends: 531 [2023-12-25 07:54:08,890 INFO L226 Difference]: Without dead ends: 478 [2023-12-25 07:54:08,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:54:08,891 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 706 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:08,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1003 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:54:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-12-25 07:54:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 209. [2023-12-25 07:54:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4759615384615385) internal successors, (307), 208 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) [2023-12-25 07:54:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 307 transitions. [2023-12-25 07:54:08,906 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 307 transitions. Word has length 73 [2023-12-25 07:54:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:08,907 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 307 transitions. [2023-12-25 07:54:08,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 307 transitions. [2023-12-25 07:54:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 07:54:08,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:08,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:08,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:09,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:09,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash -122926772, now seen corresponding path program 1 times [2023-12-25 07:54:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:09,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096637695] [2023-12-25 07:54:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:09,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:09,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:09,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 07:54:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:09,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:09,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:09,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:09,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:09,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096637695] [2023-12-25 07:54:09,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096637695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:09,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:09,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:09,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339348461] [2023-12-25 07:54:09,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:09,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:09,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:09,283 INFO L87 Difference]: Start difference. First operand 209 states and 307 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:09,299 INFO L93 Difference]: Finished difference Result 503 states and 785 transitions. [2023-12-25 07:54:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:09,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-25 07:54:09,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:09,302 INFO L225 Difference]: With dead ends: 503 [2023-12-25 07:54:09,302 INFO L226 Difference]: Without dead ends: 348 [2023-12-25 07:54:09,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:09,308 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 58 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:09,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 216 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-25 07:54:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2023-12-25 07:54:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.5246376811594202) internal successors, (526), 345 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 526 transitions. [2023-12-25 07:54:09,334 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 526 transitions. Word has length 75 [2023-12-25 07:54:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:09,334 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 526 transitions. [2023-12-25 07:54:09,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 526 transitions. [2023-12-25 07:54:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 07:54:09,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:09,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:09,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:09,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:09,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:09,542 INFO L85 PathProgramCache]: Analyzing trace with hash 536658470, now seen corresponding path program 1 times [2023-12-25 07:54:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:09,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464863281] [2023-12-25 07:54:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:09,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:09,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:09,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 07:54:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:09,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:54:09,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:09,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:09,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:09,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464863281] [2023-12-25 07:54:09,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464863281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:09,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:54:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358765305] [2023-12-25 07:54:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:09,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:54:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:54:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:54:09,639 INFO L87 Difference]: Start difference. First operand 346 states and 526 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:09,674 INFO L93 Difference]: Finished difference Result 360 states and 543 transitions. [2023-12-25 07:54:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:54:09,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-25 07:54:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:09,676 INFO L225 Difference]: With dead ends: 360 [2023-12-25 07:54:09,676 INFO L226 Difference]: Without dead ends: 358 [2023-12-25 07:54:09,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:54:09,677 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:09,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 400 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-25 07:54:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2023-12-25 07:54:09,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 1.5099150141643058) internal successors, (533), 353 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 533 transitions. [2023-12-25 07:54:09,683 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 533 transitions. Word has length 76 [2023-12-25 07:54:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:09,684 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 533 transitions. [2023-12-25 07:54:09,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 533 transitions. [2023-12-25 07:54:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:09,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:09,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:09,705 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 (6)] Ended with exit code 0 [2023-12-25 07:54:09,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:09,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:09,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1846932892, now seen corresponding path program 1 times [2023-12-25 07:54:09,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:09,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018144476] [2023-12-25 07:54:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:09,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:09,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:09,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:09,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 07:54:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:09,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:09,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:10,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:10,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:10,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:10,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018144476] [2023-12-25 07:54:10,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018144476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:10,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:10,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:10,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560676246] [2023-12-25 07:54:10,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:10,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:10,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:10,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:10,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,015 INFO L87 Difference]: Start difference. First operand 354 states and 533 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:10,027 INFO L93 Difference]: Finished difference Result 666 states and 1033 transitions. [2023-12-25 07:54:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:10,029 INFO L225 Difference]: With dead ends: 666 [2023-12-25 07:54:10,029 INFO L226 Difference]: Without dead ends: 505 [2023-12-25 07:54:10,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,030 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 76 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:10,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-25 07:54:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 503. [2023-12-25 07:54:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 502 states have (on average 1.5318725099601593) internal successors, (769), 502 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 769 transitions. [2023-12-25 07:54:10,039 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 769 transitions. Word has length 77 [2023-12-25 07:54:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:10,040 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 769 transitions. [2023-12-25 07:54:10,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 769 transitions. [2023-12-25 07:54:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:10,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:10,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:10,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:10,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:10,243 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:10,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1501935516, now seen corresponding path program 1 times [2023-12-25 07:54:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:10,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046782982] [2023-12-25 07:54:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:10,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:10,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:10,246 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:10,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 07:54:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:10,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:10,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:10,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:10,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:10,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046782982] [2023-12-25 07:54:10,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046782982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:10,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:10,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:10,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161633330] [2023-12-25 07:54:10,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:10,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:10,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:10,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,361 INFO L87 Difference]: Start difference. First operand 503 states and 769 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:10,378 INFO L93 Difference]: Finished difference Result 1361 states and 2132 transitions. [2023-12-25 07:54:10,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:10,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:10,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:10,381 INFO L225 Difference]: With dead ends: 1361 [2023-12-25 07:54:10,381 INFO L226 Difference]: Without dead ends: 914 [2023-12-25 07:54:10,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,383 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:10,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-12-25 07:54:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 912. [2023-12-25 07:54:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 911 states have (on average 1.5466520307354557) internal successors, (1409), 911 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1409 transitions. [2023-12-25 07:54:10,420 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1409 transitions. Word has length 77 [2023-12-25 07:54:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:10,420 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1409 transitions. [2023-12-25 07:54:10,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1409 transitions. [2023-12-25 07:54:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:10,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:10,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:10,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:10,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:10,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:10,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1770518684, now seen corresponding path program 1 times [2023-12-25 07:54:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:10,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591563612] [2023-12-25 07:54:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:10,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:10,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:10,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:10,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 07:54:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:10,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:10,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:10,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:10,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:10,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591563612] [2023-12-25 07:54:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591563612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:10,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444209202] [2023-12-25 07:54:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,749 INFO L87 Difference]: Start difference. First operand 912 states and 1409 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:10,774 INFO L93 Difference]: Finished difference Result 2552 states and 3989 transitions. [2023-12-25 07:54:10,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:10,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:10,779 INFO L225 Difference]: With dead ends: 2552 [2023-12-25 07:54:10,779 INFO L226 Difference]: Without dead ends: 1696 [2023-12-25 07:54:10,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:10,781 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:10,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 295 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2023-12-25 07:54:10,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1694. [2023-12-25 07:54:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1693 states have (on average 1.5457767277023036) internal successors, (2617), 1693 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2617 transitions. [2023-12-25 07:54:10,814 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2617 transitions. Word has length 77 [2023-12-25 07:54:10,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:10,814 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 2617 transitions. [2023-12-25 07:54:10,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2617 transitions. [2023-12-25 07:54:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:10,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:10,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:10,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:11,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:11,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:11,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1938736484, now seen corresponding path program 1 times [2023-12-25 07:54:11,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:11,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50477712] [2023-12-25 07:54:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:11,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:11,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:11,036 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:11,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 07:54:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:11,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:11,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:11,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:11,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:11,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50477712] [2023-12-25 07:54:11,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50477712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:11,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:11,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:11,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591862786] [2023-12-25 07:54:11,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:11,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:11,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:11,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:11,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:11,147 INFO L87 Difference]: Start difference. First operand 1694 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:11,187 INFO L93 Difference]: Finished difference Result 4826 states and 7487 transitions. [2023-12-25 07:54:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:11,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:11,196 INFO L225 Difference]: With dead ends: 4826 [2023-12-25 07:54:11,197 INFO L226 Difference]: Without dead ends: 3188 [2023-12-25 07:54:11,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:11,199 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:11,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2023-12-25 07:54:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2023-12-25 07:54:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.5350078492935635) internal successors, (4889), 3185 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 4889 transitions. [2023-12-25 07:54:11,259 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 4889 transitions. Word has length 77 [2023-12-25 07:54:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:11,259 INFO L495 AbstractCegarLoop]: Abstraction has 3186 states and 4889 transitions. [2023-12-25 07:54:11,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 4889 transitions. [2023-12-25 07:54:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:11,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:11,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:11,276 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 (10)] Ended with exit code 0 [2023-12-25 07:54:11,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:11,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:11,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:11,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1467497372, now seen corresponding path program 1 times [2023-12-25 07:54:11,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:11,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408164319] [2023-12-25 07:54:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:11,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:11,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:11,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:11,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 07:54:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:11,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:11,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:11,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:11,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408164319] [2023-12-25 07:54:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408164319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:11,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:11,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:11,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663508319] [2023-12-25 07:54:11,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:11,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:11,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:11,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:11,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:11,577 INFO L87 Difference]: Start difference. First operand 3186 states and 4889 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:11,632 INFO L93 Difference]: Finished difference Result 9158 states and 14051 transitions. [2023-12-25 07:54:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:11,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:11,648 INFO L225 Difference]: With dead ends: 9158 [2023-12-25 07:54:11,649 INFO L226 Difference]: Without dead ends: 6028 [2023-12-25 07:54:11,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:11,655 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 64 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:11,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:11,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2023-12-25 07:54:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 6026. [2023-12-25 07:54:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6025 states have (on average 1.5178423236514522) internal successors, (9145), 6025 states have internal predecessors, (9145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 9145 transitions. [2023-12-25 07:54:11,801 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 9145 transitions. Word has length 77 [2023-12-25 07:54:11,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:11,801 INFO L495 AbstractCegarLoop]: Abstraction has 6026 states and 9145 transitions. [2023-12-25 07:54:11,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 9145 transitions. [2023-12-25 07:54:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:11,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:11,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:11,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:12,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:12,005 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:12,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1730574748, now seen corresponding path program 1 times [2023-12-25 07:54:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:12,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436866248] [2023-12-25 07:54:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:12,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:12,007 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:12,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 07:54:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:12,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:12,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:12,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:12,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436866248] [2023-12-25 07:54:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436866248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:12,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:12,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:12,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316045066] [2023-12-25 07:54:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:12,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:12,112 INFO L87 Difference]: Start difference. First operand 6026 states and 9145 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:12,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:12,200 INFO L93 Difference]: Finished difference Result 17390 states and 26315 transitions. [2023-12-25 07:54:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:12,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:12,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:12,229 INFO L225 Difference]: With dead ends: 17390 [2023-12-25 07:54:12,230 INFO L226 Difference]: Without dead ends: 11420 [2023-12-25 07:54:12,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:12,239 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 68 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:12,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2023-12-25 07:54:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11418. [2023-12-25 07:54:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11418 states, 11417 states have (on average 1.496102303582377) internal successors, (17081), 11417 states have internal predecessors, (17081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11418 states to 11418 states and 17081 transitions. [2023-12-25 07:54:12,523 INFO L78 Accepts]: Start accepts. Automaton has 11418 states and 17081 transitions. Word has length 77 [2023-12-25 07:54:12,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:12,523 INFO L495 AbstractCegarLoop]: Abstraction has 11418 states and 17081 transitions. [2023-12-25 07:54:12,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 11418 states and 17081 transitions. [2023-12-25 07:54:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:54:12,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:12,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:12,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:12,727 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:12,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1091548828, now seen corresponding path program 1 times [2023-12-25 07:54:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082865121] [2023-12-25 07:54:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:12,728 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:12,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 07:54:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:12,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:12,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:12,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:12,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082865121] [2023-12-25 07:54:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082865121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:12,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:12,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537645499] [2023-12-25 07:54:12,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:12,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:12,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:12,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:12,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:12,838 INFO L87 Difference]: Start difference. First operand 11418 states and 17081 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:13,010 INFO L93 Difference]: Finished difference Result 32990 states and 49115 transitions. [2023-12-25 07:54:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-25 07:54:13,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:13,053 INFO L225 Difference]: With dead ends: 32990 [2023-12-25 07:54:13,053 INFO L226 Difference]: Without dead ends: 21628 [2023-12-25 07:54:13,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:13,068 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 74 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:13,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 299 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21628 states. [2023-12-25 07:54:13,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21628 to 21626. [2023-12-25 07:54:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21626 states, 21625 states have (on average 1.4705664739884392) internal successors, (31801), 21625 states have internal predecessors, (31801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21626 states to 21626 states and 31801 transitions. [2023-12-25 07:54:13,548 INFO L78 Accepts]: Start accepts. Automaton has 21626 states and 31801 transitions. Word has length 77 [2023-12-25 07:54:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:13,548 INFO L495 AbstractCegarLoop]: Abstraction has 21626 states and 31801 transitions. [2023-12-25 07:54:13,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21626 states and 31801 transitions. [2023-12-25 07:54:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 07:54:13,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:13,552 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-12-25 07:54:13,554 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 [2023-12-25 07:54:13,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:13,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:13,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1778428204, now seen corresponding path program 1 times [2023-12-25 07:54:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:13,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505451539] [2023-12-25 07:54:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:13,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:13,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:13,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 07:54:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:13,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:13,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:14,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:14,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:14,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505451539] [2023-12-25 07:54:14,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505451539] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:14,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:14,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:14,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557316482] [2023-12-25 07:54:14,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:14,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:14,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:14,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:14,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:14,824 INFO L87 Difference]: Start difference. First operand 21626 states and 31801 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) [2023-12-25 07:54:16,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:16,888 INFO L93 Difference]: Finished difference Result 68932 states and 100798 transitions. [2023-12-25 07:54:16,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:54:16,889 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 99 [2023-12-25 07:54:16,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:16,990 INFO L225 Difference]: With dead ends: 68932 [2023-12-25 07:54:16,990 INFO L226 Difference]: Without dead ends: 53954 [2023-12-25 07:54:17,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-25 07:54:17,011 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1054 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:17,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1504 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:54:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53954 states. [2023-12-25 07:54:17,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53954 to 43194. [2023-12-25 07:54:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43194 states, 43193 states have (on average 1.4667422962054038) internal successors, (63353), 43193 states have internal predecessors, (63353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43194 states to 43194 states and 63353 transitions. [2023-12-25 07:54:18,085 INFO L78 Accepts]: Start accepts. Automaton has 43194 states and 63353 transitions. Word has length 99 [2023-12-25 07:54:18,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:18,086 INFO L495 AbstractCegarLoop]: Abstraction has 43194 states and 63353 transitions. [2023-12-25 07:54:18,086 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) [2023-12-25 07:54:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 43194 states and 63353 transitions. [2023-12-25 07:54:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 07:54:18,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:18,090 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-12-25 07:54:18,093 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 [2023-12-25 07:54:18,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:18,293 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:18,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1433430828, now seen corresponding path program 1 times [2023-12-25 07:54:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:18,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248362399] [2023-12-25 07:54:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:18,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:18,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:18,296 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:18,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 07:54:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:18,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:18,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:18,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:18,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248362399] [2023-12-25 07:54:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248362399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:18,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:18,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:18,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435054872] [2023-12-25 07:54:18,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:18,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:18,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:18,419 INFO L87 Difference]: Start difference. First operand 43194 states and 63353 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:18,941 INFO L93 Difference]: Finished difference Result 73172 states and 107730 transitions. [2023-12-25 07:54:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:18,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-25 07:54:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:18,977 INFO L225 Difference]: With dead ends: 73172 [2023-12-25 07:54:18,977 INFO L226 Difference]: Without dead ends: 30034 [2023-12-25 07:54:19,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:19,007 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 63 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:19,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30034 states. [2023-12-25 07:54:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30034 to 30027. [2023-12-25 07:54:19,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30027 states, 30026 states have (on average 1.466795443948578) internal successors, (44042), 30026 states have internal predecessors, (44042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30027 states to 30027 states and 44042 transitions. [2023-12-25 07:54:19,713 INFO L78 Accepts]: Start accepts. Automaton has 30027 states and 44042 transitions. Word has length 99 [2023-12-25 07:54:19,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:19,713 INFO L495 AbstractCegarLoop]: Abstraction has 30027 states and 44042 transitions. [2023-12-25 07:54:19,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:19,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30027 states and 44042 transitions. [2023-12-25 07:54:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 07:54:19,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:19,719 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-12-25 07:54:19,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:19,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:19,921 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:19,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:19,922 INFO L85 PathProgramCache]: Analyzing trace with hash 205780708, now seen corresponding path program 1 times [2023-12-25 07:54:19,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:19,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765494957] [2023-12-25 07:54:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:19,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:19,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:19,925 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:19,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 07:54:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:20,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:20,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:20,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:20,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:20,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765494957] [2023-12-25 07:54:20,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765494957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:20,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:20,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502956831] [2023-12-25 07:54:20,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:20,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:20,038 INFO L87 Difference]: Start difference. First operand 30027 states and 44042 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:20,261 INFO L93 Difference]: Finished difference Result 45007 states and 66028 transitions. [2023-12-25 07:54:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:20,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 07:54:20,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:20,280 INFO L225 Difference]: With dead ends: 45007 [2023-12-25 07:54:20,280 INFO L226 Difference]: Without dead ends: 15053 [2023-12-25 07:54:20,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:20,299 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 59 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:20,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 305 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15053 states. [2023-12-25 07:54:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15053 to 15051. [2023-12-25 07:54:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15051 states, 15050 states have (on average 1.452890365448505) internal successors, (21866), 15050 states have internal predecessors, (21866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15051 states to 15051 states and 21866 transitions. [2023-12-25 07:54:20,697 INFO L78 Accepts]: Start accepts. Automaton has 15051 states and 21866 transitions. Word has length 101 [2023-12-25 07:54:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:20,698 INFO L495 AbstractCegarLoop]: Abstraction has 15051 states and 21866 transitions. [2023-12-25 07:54:20,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15051 states and 21866 transitions. [2023-12-25 07:54:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 07:54:20,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:20,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:20,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:20,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:20,902 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:20,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1162057049, now seen corresponding path program 1 times [2023-12-25 07:54:20,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:20,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632767444] [2023-12-25 07:54:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:20,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:20,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:20,904 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:20,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 07:54:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:20,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:20,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:21,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:21,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632767444] [2023-12-25 07:54:21,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632767444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:21,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:21,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300539601] [2023-12-25 07:54:21,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:21,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:21,949 INFO L87 Difference]: Start difference. First operand 15051 states and 21866 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) [2023-12-25 07:54:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:23,658 INFO L93 Difference]: Finished difference Result 57875 states and 83694 transitions. [2023-12-25 07:54:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:54:23,658 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 102 [2023-12-25 07:54:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:23,704 INFO L225 Difference]: With dead ends: 57875 [2023-12-25 07:54:23,704 INFO L226 Difference]: Without dead ends: 42897 [2023-12-25 07:54:23,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:54:23,722 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1004 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:23,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1387 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 07:54:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42897 states. [2023-12-25 07:54:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42897 to 31179. [2023-12-25 07:54:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31179 states, 31178 states have (on average 1.4310731926358329) internal successors, (44618), 31178 states have internal predecessors, (44618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31179 states to 31179 states and 44618 transitions. [2023-12-25 07:54:24,526 INFO L78 Accepts]: Start accepts. Automaton has 31179 states and 44618 transitions. Word has length 102 [2023-12-25 07:54:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:24,527 INFO L495 AbstractCegarLoop]: Abstraction has 31179 states and 44618 transitions. [2023-12-25 07:54:24,527 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) [2023-12-25 07:54:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 31179 states and 44618 transitions. [2023-12-25 07:54:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 07:54:24,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:24,530 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:24,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:24,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:24,733 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:24,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:24,733 INFO L85 PathProgramCache]: Analyzing trace with hash 66645059, now seen corresponding path program 1 times [2023-12-25 07:54:24,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:24,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131953297] [2023-12-25 07:54:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:24,733 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 [2023-12-25 07:54:24,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:24,734 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:24,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 07:54:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:24,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:24,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:24,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:24,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131953297] [2023-12-25 07:54:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131953297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:24,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:24,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:24,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293985215] [2023-12-25 07:54:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:24,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:24,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:24,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:24,851 INFO L87 Difference]: Start difference. First operand 31179 states and 44618 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:25,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:25,250 INFO L93 Difference]: Finished difference Result 46735 states and 66892 transitions. [2023-12-25 07:54:25,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:25,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-25 07:54:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:25,266 INFO L225 Difference]: With dead ends: 46735 [2023-12-25 07:54:25,266 INFO L226 Difference]: Without dead ends: 15629 [2023-12-25 07:54:25,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:25,276 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 55 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:25,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 290 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15629 states. [2023-12-25 07:54:25,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15629 to 15627. [2023-12-25 07:54:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15627 states, 15626 states have (on average 1.4177652630231665) internal successors, (22154), 15626 states have internal predecessors, (22154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15627 states to 15627 states and 22154 transitions. [2023-12-25 07:54:25,553 INFO L78 Accepts]: Start accepts. Automaton has 15627 states and 22154 transitions. Word has length 104 [2023-12-25 07:54:25,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:25,553 INFO L495 AbstractCegarLoop]: Abstraction has 15627 states and 22154 transitions. [2023-12-25 07:54:25,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:25,553 INFO L276 IsEmpty]: Start isEmpty. Operand 15627 states and 22154 transitions. [2023-12-25 07:54:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 07:54:25,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:25,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:25,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:25,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:25,771 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:25,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:25,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1590681560, now seen corresponding path program 1 times [2023-12-25 07:54:25,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:25,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135423850] [2023-12-25 07:54:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:25,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:25,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:25,773 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:25,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 07:54:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:25,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:25,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:26,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:26,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:26,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:26,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135423850] [2023-12-25 07:54:26,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135423850] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:26,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:26,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:26,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185078706] [2023-12-25 07:54:26,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:26,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:26,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:26,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:26,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:26,742 INFO L87 Difference]: Start difference. First operand 15627 states and 22154 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) [2023-12-25 07:54:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:28,539 INFO L93 Difference]: Finished difference Result 58451 states and 82638 transitions. [2023-12-25 07:54:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:54:28,539 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 105 [2023-12-25 07:54:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:28,593 INFO L225 Difference]: With dead ends: 58451 [2023-12-25 07:54:28,594 INFO L226 Difference]: Without dead ends: 42897 [2023-12-25 07:54:28,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:54:28,610 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 790 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:28,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1544 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 07:54:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42897 states. [2023-12-25 07:54:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42897 to 32331. [2023-12-25 07:54:29,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32331 states, 32330 states have (on average 1.3978966903804515) internal successors, (45194), 32330 states have internal predecessors, (45194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32331 states to 32331 states and 45194 transitions. [2023-12-25 07:54:29,384 INFO L78 Accepts]: Start accepts. Automaton has 32331 states and 45194 transitions. Word has length 105 [2023-12-25 07:54:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:29,385 INFO L495 AbstractCegarLoop]: Abstraction has 32331 states and 45194 transitions. [2023-12-25 07:54:29,385 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) [2023-12-25 07:54:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 32331 states and 45194 transitions. [2023-12-25 07:54:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 07:54:29,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:29,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:29,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:29,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:29,601 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:29,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1535577392, now seen corresponding path program 1 times [2023-12-25 07:54:29,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:29,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726315147] [2023-12-25 07:54:29,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:29,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:29,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:29,603 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:29,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 07:54:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:29,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:29,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:29,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:29,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:29,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726315147] [2023-12-25 07:54:29,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726315147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:29,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:29,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:29,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887691148] [2023-12-25 07:54:29,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:29,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:29,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:29,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:29,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:29,722 INFO L87 Difference]: Start difference. First operand 32331 states and 45194 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:30,210 INFO L93 Difference]: Finished difference Result 48463 states and 67756 transitions. [2023-12-25 07:54:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:30,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-25 07:54:30,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:30,228 INFO L225 Difference]: With dead ends: 48463 [2023-12-25 07:54:30,228 INFO L226 Difference]: Without dead ends: 16205 [2023-12-25 07:54:30,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:30,243 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:30,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 275 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16205 states. [2023-12-25 07:54:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16205 to 16203. [2023-12-25 07:54:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16203 states, 16202 states have (on average 1.3851376373287247) internal successors, (22442), 16202 states have internal predecessors, (22442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16203 states to 16203 states and 22442 transitions. [2023-12-25 07:54:30,554 INFO L78 Accepts]: Start accepts. Automaton has 16203 states and 22442 transitions. Word has length 107 [2023-12-25 07:54:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:30,554 INFO L495 AbstractCegarLoop]: Abstraction has 16203 states and 22442 transitions. [2023-12-25 07:54:30,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 16203 states and 22442 transitions. [2023-12-25 07:54:30,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 07:54:30,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:30,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:30,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:30,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:30,759 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:30,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash 11446843, now seen corresponding path program 1 times [2023-12-25 07:54:30,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:30,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611997262] [2023-12-25 07:54:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:30,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:30,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:30,761 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:30,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 07:54:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:30,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:30,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:31,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:31,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:31,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611997262] [2023-12-25 07:54:31,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611997262] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:31,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:31,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125454125] [2023-12-25 07:54:31,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:31,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:31,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:31,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:31,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:31,862 INFO L87 Difference]: Start difference. First operand 16203 states and 22442 transitions. Second operand has 16 states, 16 states have (on average 12.75) internal successors, (204), 16 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:33,639 INFO L93 Difference]: Finished difference Result 59027 states and 81582 transitions. [2023-12-25 07:54:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:54:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.75) internal successors, (204), 16 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-25 07:54:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:33,686 INFO L225 Difference]: With dead ends: 59027 [2023-12-25 07:54:33,687 INFO L226 Difference]: Without dead ends: 42897 [2023-12-25 07:54:33,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:54:33,706 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 645 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:33,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1034 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:54:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42897 states. [2023-12-25 07:54:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42897 to 33483. [2023-12-25 07:54:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33483 states, 33482 states have (on average 1.3670031658801745) internal successors, (45770), 33482 states have internal predecessors, (45770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33483 states to 33483 states and 45770 transitions. [2023-12-25 07:54:34,496 INFO L78 Accepts]: Start accepts. Automaton has 33483 states and 45770 transitions. Word has length 108 [2023-12-25 07:54:34,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:34,496 INFO L495 AbstractCegarLoop]: Abstraction has 33483 states and 45770 transitions. [2023-12-25 07:54:34,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.75) internal successors, (204), 16 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 33483 states and 45770 transitions. [2023-12-25 07:54:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 07:54:34,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:34,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:34,502 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 [2023-12-25 07:54:34,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:34,702 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:34,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:34,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1845744751, now seen corresponding path program 1 times [2023-12-25 07:54:34,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:34,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723633166] [2023-12-25 07:54:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:34,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:34,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:34,703 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:34,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 07:54:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:34,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:34,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:34,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:34,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723633166] [2023-12-25 07:54:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723633166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:34,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:34,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:34,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232662253] [2023-12-25 07:54:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:34,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:34,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:34,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:34,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:34,827 INFO L87 Difference]: Start difference. First operand 33483 states and 45770 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:35,354 INFO L93 Difference]: Finished difference Result 50191 states and 68620 transitions. [2023-12-25 07:54:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:35,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-25 07:54:35,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:35,370 INFO L225 Difference]: With dead ends: 50191 [2023-12-25 07:54:35,370 INFO L226 Difference]: Without dead ends: 16781 [2023-12-25 07:54:35,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:35,381 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 47 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:35,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 260 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16781 states. [2023-12-25 07:54:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16781 to 16779. [2023-12-25 07:54:35,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16779 states, 16778 states have (on average 1.354750268208368) internal successors, (22730), 16778 states have internal predecessors, (22730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16779 states to 16779 states and 22730 transitions. [2023-12-25 07:54:35,712 INFO L78 Accepts]: Start accepts. Automaton has 16779 states and 22730 transitions. Word has length 110 [2023-12-25 07:54:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:35,712 INFO L495 AbstractCegarLoop]: Abstraction has 16779 states and 22730 transitions. [2023-12-25 07:54:35,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:35,712 INFO L276 IsEmpty]: Start isEmpty. Operand 16779 states and 22730 transitions. [2023-12-25 07:54:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:54:35,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:35,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:35,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:35,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:35,916 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:35,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1793162108, now seen corresponding path program 1 times [2023-12-25 07:54:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:35,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414532656] [2023-12-25 07:54:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:35,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:35,918 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:35,919 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 (23)] Waiting until timeout for monitored process [2023-12-25 07:54:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:35,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:35,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:36,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:36,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:36,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414532656] [2023-12-25 07:54:36,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414532656] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:36,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:36,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272962057] [2023-12-25 07:54:36,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:36,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:36,907 INFO L87 Difference]: Start difference. First operand 16779 states and 22730 transitions. Second operand has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:38,650 INFO L93 Difference]: Finished difference Result 59603 states and 80526 transitions. [2023-12-25 07:54:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:54:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-25 07:54:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:38,697 INFO L225 Difference]: With dead ends: 59603 [2023-12-25 07:54:38,697 INFO L226 Difference]: Without dead ends: 42897 [2023-12-25 07:54:38,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:54:38,704 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 578 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:38,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 959 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:54:38,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42897 states. [2023-12-25 07:54:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42897 to 34635. [2023-12-25 07:54:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34635 states, 34634 states have (on average 1.3381648091470808) internal successors, (46346), 34634 states have internal predecessors, (46346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34635 states to 34635 states and 46346 transitions. [2023-12-25 07:54:39,637 INFO L78 Accepts]: Start accepts. Automaton has 34635 states and 46346 transitions. Word has length 111 [2023-12-25 07:54:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:39,637 INFO L495 AbstractCegarLoop]: Abstraction has 34635 states and 46346 transitions. [2023-12-25 07:54:39,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 34635 states and 46346 transitions. [2023-12-25 07:54:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 07:54:39,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:39,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:39,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:39,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:39,841 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:39,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1594723516, now seen corresponding path program 1 times [2023-12-25 07:54:39,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:39,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88556583] [2023-12-25 07:54:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:39,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:39,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:39,843 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:39,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 07:54:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:39,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:39,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:39,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:39,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:39,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88556583] [2023-12-25 07:54:39,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88556583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:39,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:39,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:39,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8842709] [2023-12-25 07:54:39,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:39,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:39,954 INFO L87 Difference]: Start difference. First operand 34635 states and 46346 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:40,314 INFO L93 Difference]: Finished difference Result 51919 states and 69484 transitions. [2023-12-25 07:54:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:40,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-25 07:54:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:40,334 INFO L225 Difference]: With dead ends: 51919 [2023-12-25 07:54:40,334 INFO L226 Difference]: Without dead ends: 17357 [2023-12-25 07:54:40,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:40,352 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 43 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:40,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 245 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17357 states. [2023-12-25 07:54:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17357 to 17355. [2023-12-25 07:54:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17355 states, 17354 states have (on average 1.326380085282932) internal successors, (23018), 17354 states have internal predecessors, (23018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17355 states to 17355 states and 23018 transitions. [2023-12-25 07:54:40,847 INFO L78 Accepts]: Start accepts. Automaton has 17355 states and 23018 transitions. Word has length 113 [2023-12-25 07:54:40,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:40,848 INFO L495 AbstractCegarLoop]: Abstraction has 17355 states and 23018 transitions. [2023-12-25 07:54:40,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17355 states and 23018 transitions. [2023-12-25 07:54:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 07:54:40,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:40,849 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:40,852 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:41,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:41,052 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:41,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1975782351, now seen corresponding path program 1 times [2023-12-25 07:54:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:41,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816146216] [2023-12-25 07:54:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:41,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:41,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:41,053 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:41,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 07:54:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:41,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:41,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:41,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:42,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:42,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816146216] [2023-12-25 07:54:42,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816146216] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:42,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:42,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:42,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021402554] [2023-12-25 07:54:42,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:42,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:42,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:42,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:42,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:42,263 INFO L87 Difference]: Start difference. First operand 17355 states and 23018 transitions. Second operand has 16 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:43,959 INFO L93 Difference]: Finished difference Result 60179 states and 79470 transitions. [2023-12-25 07:54:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:54:43,959 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 0 states have call successors, (0), 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 114 [2023-12-25 07:54:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:43,998 INFO L225 Difference]: With dead ends: 60179 [2023-12-25 07:54:43,998 INFO L226 Difference]: Without dead ends: 42897 [2023-12-25 07:54:44,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:54:44,009 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 612 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:44,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1014 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:54:44,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42897 states. [2023-12-25 07:54:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42897 to 35787. [2023-12-25 07:54:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35787 states, 35786 states have (on average 1.3111831442463533) internal successors, (46922), 35786 states have internal predecessors, (46922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35787 states to 35787 states and 46922 transitions. [2023-12-25 07:54:44,933 INFO L78 Accepts]: Start accepts. Automaton has 35787 states and 46922 transitions. Word has length 114 [2023-12-25 07:54:44,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:44,933 INFO L495 AbstractCegarLoop]: Abstraction has 35787 states and 46922 transitions. [2023-12-25 07:54:44,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:44,933 INFO L276 IsEmpty]: Start isEmpty. Operand 35787 states and 46922 transitions. [2023-12-25 07:54:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 07:54:44,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:44,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:44,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:45,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:45,138 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:45,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -568333669, now seen corresponding path program 1 times [2023-12-25 07:54:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:45,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676953242] [2023-12-25 07:54:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:45,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:45,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:45,139 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:54:45,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 07:54:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:45,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:54:45,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:45,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:54:45,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:45,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676953242] [2023-12-25 07:54:45,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676953242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:54:45,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:54:45,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:54:45,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375281961] [2023-12-25 07:54:45,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:54:45,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:54:45,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:54:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:45,263 INFO L87 Difference]: Start difference. First operand 35787 states and 46922 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:45,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:45,776 INFO L93 Difference]: Finished difference Result 53539 states and 70117 transitions. [2023-12-25 07:54:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:54:45,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-25 07:54:45,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:45,793 INFO L225 Difference]: With dead ends: 53539 [2023-12-25 07:54:45,794 INFO L226 Difference]: Without dead ends: 17825 [2023-12-25 07:54:45,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:54:45,803 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:45,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 230 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:45,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17825 states. [2023-12-25 07:54:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17825 to 17823. [2023-12-25 07:54:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17823 states, 17822 states have (on average 1.2948041746156436) internal successors, (23076), 17822 states have internal predecessors, (23076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17823 states to 17823 states and 23076 transitions. [2023-12-25 07:54:46,210 INFO L78 Accepts]: Start accepts. Automaton has 17823 states and 23076 transitions. Word has length 116 [2023-12-25 07:54:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:46,210 INFO L495 AbstractCegarLoop]: Abstraction has 17823 states and 23076 transitions. [2023-12-25 07:54:46,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 17823 states and 23076 transitions. [2023-12-25 07:54:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 07:54:46,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:46,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:46,221 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 [2023-12-25 07:54:46,414 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 [2023-12-25 07:54:46,414 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:46,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash 234252496, now seen corresponding path program 1 times [2023-12-25 07:54:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:46,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652554561] [2023-12-25 07:54:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:46,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:46,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:46,416 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) [2023-12-25 07:54:46,417 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 [2023-12-25 07:54:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:46,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:54:46,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:47,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:47,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652554561] [2023-12-25 07:54:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652554561] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:47,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:47,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:54:47,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258471160] [2023-12-25 07:54:47,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:47,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:54:47,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:47,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:54:47,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:54:47,433 INFO L87 Difference]: Start difference. First operand 17823 states and 23076 transitions. Second operand has 16 states, 16 states have (on average 14.25) internal successors, (228), 16 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:48,747 INFO L93 Difference]: Finished difference Result 50501 states and 65039 transitions. [2023-12-25 07:54:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:54:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.25) internal successors, (228), 16 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-25 07:54:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:48,785 INFO L225 Difference]: With dead ends: 50501 [2023-12-25 07:54:48,786 INFO L226 Difference]: Without dead ends: 32751 [2023-12-25 07:54:48,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:54:48,802 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 723 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:48,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 704 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:54:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32751 states. [2023-12-25 07:54:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32751 to 30381. [2023-12-25 07:54:49,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30381 states, 30380 states have (on average 1.2795589203423305) internal successors, (38873), 30380 states have internal predecessors, (38873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30381 states to 30381 states and 38873 transitions. [2023-12-25 07:54:49,705 INFO L78 Accepts]: Start accepts. Automaton has 30381 states and 38873 transitions. Word has length 117 [2023-12-25 07:54:49,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:49,705 INFO L495 AbstractCegarLoop]: Abstraction has 30381 states and 38873 transitions. [2023-12-25 07:54:49,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.25) internal successors, (228), 16 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30381 states and 38873 transitions. [2023-12-25 07:54:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 07:54:49,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:49,707 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:49,712 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 07:54:49,909 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 [2023-12-25 07:54:49,910 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:49,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash 231392424, now seen corresponding path program 1 times [2023-12-25 07:54:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545079911] [2023-12-25 07:54:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:49,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:49,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:49,911 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) [2023-12-25 07:54:49,913 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 [2023-12-25 07:54:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:49,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:54:49,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:54:50,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:54:50,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:50,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545079911] [2023-12-25 07:54:50,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545079911] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:50,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:50,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 07:54:50,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030952850] [2023-12-25 07:54:50,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:50,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:54:50,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:54:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:54:50,269 INFO L87 Difference]: Start difference. First operand 30381 states and 38873 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:54:52,573 INFO L93 Difference]: Finished difference Result 117129 states and 148101 transitions. [2023-12-25 07:54:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:54:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-25 07:54:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:54:52,660 INFO L225 Difference]: With dead ends: 117129 [2023-12-25 07:54:52,660 INFO L226 Difference]: Without dead ends: 86821 [2023-12-25 07:54:52,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:54:52,674 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 179 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:54:52,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 520 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:54:52,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86821 states. [2023-12-25 07:54:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86821 to 85103. [2023-12-25 07:54:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85103 states, 85102 states have (on average 1.229054546309135) internal successors, (104595), 85102 states have internal predecessors, (104595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:55,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85103 states to 85103 states and 104595 transitions. [2023-12-25 07:54:55,286 INFO L78 Accepts]: Start accepts. Automaton has 85103 states and 104595 transitions. Word has length 119 [2023-12-25 07:54:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:54:55,287 INFO L495 AbstractCegarLoop]: Abstraction has 85103 states and 104595 transitions. [2023-12-25 07:54:55,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:54:55,287 INFO L276 IsEmpty]: Start isEmpty. Operand 85103 states and 104595 transitions. [2023-12-25 07:54:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-25 07:54:55,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:54:55,307 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:54:55,312 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 [2023-12-25 07:54:55,510 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 [2023-12-25 07:54:55,510 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:54:55,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:54:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash -701462481, now seen corresponding path program 1 times [2023-12-25 07:54:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:54:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338171930] [2023-12-25 07:54:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:54:55,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:54:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:54:55,512 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) [2023-12-25 07:54:55,538 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 [2023-12-25 07:54:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:54:55,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:54:55,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:54:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 62 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:56,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:54:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 62 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:54:57,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:54:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338171930] [2023-12-25 07:54:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338171930] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:54:57,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:54:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:54:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625299854] [2023-12-25 07:54:57,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:54:57,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:54:57,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:54:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:54:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:54:57,025 INFO L87 Difference]: Start difference. First operand 85103 states and 104595 transitions. Second operand has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:00,612 INFO L93 Difference]: Finished difference Result 142147 states and 175294 transitions. [2023-12-25 07:55:00,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:55:00,613 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 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 176 [2023-12-25 07:55:00,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:00,717 INFO L225 Difference]: With dead ends: 142147 [2023-12-25 07:55:00,717 INFO L226 Difference]: Without dead ends: 85993 [2023-12-25 07:55:00,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 07:55:00,750 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 896 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:00,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1137 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:55:00,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85993 states. [2023-12-25 07:55:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85993 to 85103. [2023-12-25 07:55:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85103 states, 85102 states have (on average 1.218561255904679) internal successors, (103702), 85102 states have internal predecessors, (103702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85103 states to 85103 states and 103702 transitions. [2023-12-25 07:55:03,750 INFO L78 Accepts]: Start accepts. Automaton has 85103 states and 103702 transitions. Word has length 176 [2023-12-25 07:55:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:03,750 INFO L495 AbstractCegarLoop]: Abstraction has 85103 states and 103702 transitions. [2023-12-25 07:55:03,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.307692307692308) internal successors, (320), 25 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 85103 states and 103702 transitions. [2023-12-25 07:55:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-25 07:55:03,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:03,771 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:03,776 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:03,974 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 [2023-12-25 07:55:03,974 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:03,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:03,974 INFO L85 PathProgramCache]: Analyzing trace with hash 689959730, now seen corresponding path program 1 times [2023-12-25 07:55:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:03,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484141845] [2023-12-25 07:55:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:03,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:03,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:03,976 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) [2023-12-25 07:55:03,977 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 [2023-12-25 07:55:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:04,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:55:04,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:05,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:05,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:05,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484141845] [2023-12-25 07:55:05,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484141845] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:05,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:05,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:55:05,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895963486] [2023-12-25 07:55:05,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:05,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:05,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:05,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:05,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:05,582 INFO L87 Difference]: Start difference. First operand 85103 states and 103702 transitions. Second operand has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:09,311 INFO L93 Difference]: Finished difference Result 142179 states and 174749 transitions. [2023-12-25 07:55:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:55:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 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 177 [2023-12-25 07:55:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:09,528 INFO L225 Difference]: With dead ends: 142179 [2023-12-25 07:55:09,529 INFO L226 Difference]: Without dead ends: 104497 [2023-12-25 07:55:09,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=1500, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:55:09,562 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 943 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:09,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1144 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:55:09,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104497 states. [2023-12-25 07:55:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104497 to 85103. [2023-12-25 07:55:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85103 states, 85102 states have (on average 1.2136730041597141) internal successors, (103286), 85102 states have internal predecessors, (103286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85103 states to 85103 states and 103286 transitions. [2023-12-25 07:55:12,832 INFO L78 Accepts]: Start accepts. Automaton has 85103 states and 103286 transitions. Word has length 177 [2023-12-25 07:55:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:12,833 INFO L495 AbstractCegarLoop]: Abstraction has 85103 states and 103286 transitions. [2023-12-25 07:55:12,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 85103 states and 103286 transitions. [2023-12-25 07:55:12,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-25 07:55:12,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:12,855 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:12,860 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:13,058 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 [2023-12-25 07:55:13,058 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:13,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:13,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1964770017, now seen corresponding path program 1 times [2023-12-25 07:55:13,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:13,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049366410] [2023-12-25 07:55:13,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:13,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:13,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:13,060 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) [2023-12-25 07:55:13,087 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 [2023-12-25 07:55:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:13,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:55:13,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 46 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:14,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 46 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:14,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:14,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049366410] [2023-12-25 07:55:14,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049366410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:14,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:14,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:55:14,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033688294] [2023-12-25 07:55:14,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:14,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:14,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:14,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:14,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:14,613 INFO L87 Difference]: Start difference. First operand 85103 states and 103286 transitions. Second operand has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 25 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:18,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:18,360 INFO L93 Difference]: Finished difference Result 137979 states and 168793 transitions. [2023-12-25 07:55:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:55:18,361 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 25 states have internal predecessors, (332), 0 states have call successors, (0), 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 178 [2023-12-25 07:55:18,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:18,492 INFO L225 Difference]: With dead ends: 137979 [2023-12-25 07:55:18,492 INFO L226 Difference]: Without dead ends: 101185 [2023-12-25 07:55:18,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:55:18,523 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 955 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:18,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1072 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:55:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101185 states. [2023-12-25 07:55:21,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101185 to 85103. [2023-12-25 07:55:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85103 states, 85102 states have (on average 1.2085967427322508) internal successors, (102854), 85102 states have internal predecessors, (102854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85103 states to 85103 states and 102854 transitions. [2023-12-25 07:55:21,901 INFO L78 Accepts]: Start accepts. Automaton has 85103 states and 102854 transitions. Word has length 178 [2023-12-25 07:55:21,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:21,902 INFO L495 AbstractCegarLoop]: Abstraction has 85103 states and 102854 transitions. [2023-12-25 07:55:21,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.76923076923077) internal successors, (332), 25 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 85103 states and 102854 transitions. [2023-12-25 07:55:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 07:55:21,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:21,919 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:21,922 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 [2023-12-25 07:55:22,120 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 [2023-12-25 07:55:22,120 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:22,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 176682678, now seen corresponding path program 1 times [2023-12-25 07:55:22,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:22,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282758879] [2023-12-25 07:55:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:22,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:22,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:22,127 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) [2023-12-25 07:55:22,152 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 [2023-12-25 07:55:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:22,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:55:22,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:23,480 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 46 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:23,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 46 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:24,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282758879] [2023-12-25 07:55:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282758879] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:24,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:24,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:55:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702679960] [2023-12-25 07:55:24,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:24,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:24,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:24,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:24,045 INFO L87 Difference]: Start difference. First operand 85103 states and 102854 transitions. Second operand has 26 states, 26 states have (on average 12.884615384615385) internal successors, (335), 26 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:31,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:31,878 INFO L93 Difference]: Finished difference Result 155793 states and 189280 transitions. [2023-12-25 07:55:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:55:31,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.884615384615385) internal successors, (335), 26 states have internal predecessors, (335), 0 states have call successors, (0), 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 179 [2023-12-25 07:55:31,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:32,064 INFO L225 Difference]: With dead ends: 155793 [2023-12-25 07:55:32,064 INFO L226 Difference]: Without dead ends: 140111 [2023-12-25 07:55:32,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:55:32,105 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1422 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:32,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 3140 Invalid, 3012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 07:55:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140111 states. [2023-12-25 07:55:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140111 to 60143. [2023-12-25 07:55:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60143 states, 60142 states have (on average 1.211017259153337) internal successors, (72833), 60142 states have internal predecessors, (72833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60143 states to 60143 states and 72833 transitions. [2023-12-25 07:55:35,391 INFO L78 Accepts]: Start accepts. Automaton has 60143 states and 72833 transitions. Word has length 179 [2023-12-25 07:55:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:35,392 INFO L495 AbstractCegarLoop]: Abstraction has 60143 states and 72833 transitions. [2023-12-25 07:55:35,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.884615384615385) internal successors, (335), 26 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 60143 states and 72833 transitions. [2023-12-25 07:55:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 07:55:35,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:35,494 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:55:35,497 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 [2023-12-25 07:55:35,694 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 [2023-12-25 07:55:35,694 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:35,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1781142430, now seen corresponding path program 1 times [2023-12-25 07:55:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104467837] [2023-12-25 07:55:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:35,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:35,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:35,696 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) [2023-12-25 07:55:35,697 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 [2023-12-25 07:55:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:35,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:55:35,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 38 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:36,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 38 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:37,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:37,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104467837] [2023-12-25 07:55:37,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104467837] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:37,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:55:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631021680] [2023-12-25 07:55:37,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:37,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:37,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:37,268 INFO L87 Difference]: Start difference. First operand 60143 states and 72833 transitions. Second operand has 26 states, 26 states have (on average 13.0) internal successors, (338), 25 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:40,878 INFO L93 Difference]: Finished difference Result 95435 states and 116327 transitions. [2023-12-25 07:55:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:55:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 25 states have internal predecessors, (338), 0 states have call successors, (0), 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 179 [2023-12-25 07:55:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:40,971 INFO L225 Difference]: With dead ends: 95435 [2023-12-25 07:55:40,972 INFO L226 Difference]: Without dead ends: 69361 [2023-12-25 07:55:40,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:55:40,994 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1172 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:40,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 990 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:55:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69361 states. [2023-12-25 07:55:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69361 to 60143. [2023-12-25 07:55:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60143 states, 60142 states have (on average 1.2056965182401649) internal successors, (72513), 60142 states have internal predecessors, (72513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60143 states to 60143 states and 72513 transitions. [2023-12-25 07:55:43,827 INFO L78 Accepts]: Start accepts. Automaton has 60143 states and 72513 transitions. Word has length 179 [2023-12-25 07:55:43,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:43,827 INFO L495 AbstractCegarLoop]: Abstraction has 60143 states and 72513 transitions. [2023-12-25 07:55:43,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 25 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 60143 states and 72513 transitions. [2023-12-25 07:55:43,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-25 07:55:43,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:43,844 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:55:43,849 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:44,047 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 [2023-12-25 07:55:44,047 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:44,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 329443599, now seen corresponding path program 1 times [2023-12-25 07:55:44,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:44,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369318629] [2023-12-25 07:55:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:44,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:44,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:44,049 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) [2023-12-25 07:55:44,051 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 [2023-12-25 07:55:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:44,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:55:44,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 30 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:45,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 30 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:45,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369318629] [2023-12-25 07:55:45,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369318629] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:45,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:45,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:55:45,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549970357] [2023-12-25 07:55:45,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:45,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:45,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:45,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:45,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:45,770 INFO L87 Difference]: Start difference. First operand 60143 states and 72513 transitions. Second operand has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 25 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:49,309 INFO L93 Difference]: Finished difference Result 91755 states and 111185 transitions. [2023-12-25 07:55:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:55:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 25 states have internal predecessors, (344), 0 states have call successors, (0), 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 180 [2023-12-25 07:55:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:49,392 INFO L225 Difference]: With dead ends: 91755 [2023-12-25 07:55:49,392 INFO L226 Difference]: Without dead ends: 66425 [2023-12-25 07:55:49,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:55:49,410 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1062 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:49,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1022 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:55:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66425 states. [2023-12-25 07:55:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66425 to 60143. [2023-12-25 07:55:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60143 states, 60142 states have (on average 1.2002427588041635) internal successors, (72185), 60142 states have internal predecessors, (72185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60143 states to 60143 states and 72185 transitions. [2023-12-25 07:55:52,470 INFO L78 Accepts]: Start accepts. Automaton has 60143 states and 72185 transitions. Word has length 180 [2023-12-25 07:55:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:55:52,470 INFO L495 AbstractCegarLoop]: Abstraction has 60143 states and 72185 transitions. [2023-12-25 07:55:52,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.23076923076923) internal successors, (344), 25 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 60143 states and 72185 transitions. [2023-12-25 07:55:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-25 07:55:52,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:55:52,480 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:55:52,483 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:52,682 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 [2023-12-25 07:55:52,683 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:55:52,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:55:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash -777597550, now seen corresponding path program 1 times [2023-12-25 07:55:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:55:52,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602272095] [2023-12-25 07:55:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:55:52,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:52,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:55:52,685 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) [2023-12-25 07:55:52,685 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 [2023-12-25 07:55:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:55:52,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:55:52,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:55:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 22 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:53,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:55:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 22 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:55:54,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:55:54,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602272095] [2023-12-25 07:55:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602272095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:55:54,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:55:54,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:55:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119226047] [2023-12-25 07:55:54,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:55:54,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:55:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:55:54,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:55:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:55:54,366 INFO L87 Difference]: Start difference. First operand 60143 states and 72185 transitions. Second operand has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 25 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:55:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:55:58,132 INFO L93 Difference]: Finished difference Result 88137 states and 106108 transitions. [2023-12-25 07:55:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:55:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 25 states have internal predecessors, (350), 0 states have call successors, (0), 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 181 [2023-12-25 07:55:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:55:58,207 INFO L225 Difference]: With dead ends: 88137 [2023-12-25 07:55:58,207 INFO L226 Difference]: Without dead ends: 63617 [2023-12-25 07:55:58,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:55:58,226 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 906 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:58,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 1079 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:55:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63617 states. [2023-12-25 07:56:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63617 to 60143. [2023-12-25 07:56:01,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60143 states, 60142 states have (on average 1.1947224901067475) internal successors, (71853), 60142 states have internal predecessors, (71853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60143 states to 60143 states and 71853 transitions. [2023-12-25 07:56:01,322 INFO L78 Accepts]: Start accepts. Automaton has 60143 states and 71853 transitions. Word has length 181 [2023-12-25 07:56:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:56:01,322 INFO L495 AbstractCegarLoop]: Abstraction has 60143 states and 71853 transitions. [2023-12-25 07:56:01,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 25 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 60143 states and 71853 transitions. [2023-12-25 07:56:01,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:56:01,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:56:01,331 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:56:01,334 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 [2023-12-25 07:56:01,534 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 [2023-12-25 07:56:01,535 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:56:01,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:56:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1634012415, now seen corresponding path program 1 times [2023-12-25 07:56:01,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:56:01,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729077467] [2023-12-25 07:56:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:56:01,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:01,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:56:01,537 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) [2023-12-25 07:56:01,539 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 [2023-12-25 07:56:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:56:01,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:56:01,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:56:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 13 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:03,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:56:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 13 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:03,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:56:03,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729077467] [2023-12-25 07:56:03,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729077467] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:56:03,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:56:03,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:56:03,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472878158] [2023-12-25 07:56:03,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:56:03,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:56:03,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:56:03,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:56:03,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:56:03,599 INFO L87 Difference]: Start difference. First operand 60143 states and 71853 transitions. Second operand has 26 states, 26 states have (on average 13.76923076923077) internal successors, (358), 26 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:56:11,008 INFO L93 Difference]: Finished difference Result 101223 states and 120317 transitions. [2023-12-25 07:56:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 07:56:11,008 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.76923076923077) internal successors, (358), 26 states have internal predecessors, (358), 0 states have call successors, (0), 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 182 [2023-12-25 07:56:11,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:56:11,200 INFO L225 Difference]: With dead ends: 101223 [2023-12-25 07:56:11,200 INFO L226 Difference]: Without dead ends: 72553 [2023-12-25 07:56:11,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 07:56:11,225 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 795 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:56:11,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2882 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 07:56:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72553 states. [2023-12-25 07:56:13,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72553 to 37521. [2023-12-25 07:56:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37521 states, 37520 states have (on average 1.1907782515991472) internal successors, (44678), 37520 states have internal predecessors, (44678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37521 states to 37521 states and 44678 transitions. [2023-12-25 07:56:13,686 INFO L78 Accepts]: Start accepts. Automaton has 37521 states and 44678 transitions. Word has length 182 [2023-12-25 07:56:13,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:56:13,687 INFO L495 AbstractCegarLoop]: Abstraction has 37521 states and 44678 transitions. [2023-12-25 07:56:13,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.76923076923077) internal successors, (358), 26 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 37521 states and 44678 transitions. [2023-12-25 07:56:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:56:13,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:56:13,692 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:56:13,708 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 [2023-12-25 07:56:13,895 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 [2023-12-25 07:56:13,896 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:56:13,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:56:13,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1988717987, now seen corresponding path program 1 times [2023-12-25 07:56:13,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:56:13,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084011165] [2023-12-25 07:56:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:56:13,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:13,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:56:13,897 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) [2023-12-25 07:56:13,899 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 [2023-12-25 07:56:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:56:14,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:56:14,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:56:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 22 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:15,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:56:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 22 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:15,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:56:15,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084011165] [2023-12-25 07:56:15,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084011165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:56:15,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:56:15,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:56:15,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258113024] [2023-12-25 07:56:15,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:56:15,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:56:15,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:56:15,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:56:15,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:56:15,922 INFO L87 Difference]: Start difference. First operand 37521 states and 44678 transitions. Second operand has 26 states, 26 states have (on average 13.576923076923077) internal successors, (353), 26 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:23,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:56:23,018 INFO L93 Difference]: Finished difference Result 66617 states and 79258 transitions. [2023-12-25 07:56:23,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:56:23,091 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.576923076923077) internal successors, (353), 26 states have internal predecessors, (353), 0 states have call successors, (0), 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 182 [2023-12-25 07:56:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:56:23,162 INFO L225 Difference]: With dead ends: 66617 [2023-12-25 07:56:23,162 INFO L226 Difference]: Without dead ends: 58407 [2023-12-25 07:56:23,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:56:23,176 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1085 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2940 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:56:23,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 2990 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2940 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 07:56:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58407 states. [2023-12-25 07:56:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58407 to 48931. [2023-12-25 07:56:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48931 states, 48930 states have (on average 1.189229511547108) internal successors, (58189), 48930 states have internal predecessors, (58189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48931 states to 48931 states and 58189 transitions. [2023-12-25 07:56:25,808 INFO L78 Accepts]: Start accepts. Automaton has 48931 states and 58189 transitions. Word has length 182 [2023-12-25 07:56:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:56:25,808 INFO L495 AbstractCegarLoop]: Abstraction has 48931 states and 58189 transitions. [2023-12-25 07:56:25,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.576923076923077) internal successors, (353), 26 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 48931 states and 58189 transitions. [2023-12-25 07:56:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:56:25,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:56:25,814 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:56:25,820 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 07:56:26,017 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 [2023-12-25 07:56:26,018 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:56:26,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:56:26,018 INFO L85 PathProgramCache]: Analyzing trace with hash -520367233, now seen corresponding path program 1 times [2023-12-25 07:56:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:56:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100530711] [2023-12-25 07:56:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:56:26,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:26,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:56:26,020 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) [2023-12-25 07:56:26,022 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 [2023-12-25 07:56:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:56:26,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:56:26,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:56:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 31 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:27,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:56:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 31 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:28,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:56:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100530711] [2023-12-25 07:56:28,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100530711] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:56:28,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:56:28,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:56:28,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456717263] [2023-12-25 07:56:28,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:56:28,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:56:28,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:56:28,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:56:28,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:56:28,142 INFO L87 Difference]: Start difference. First operand 48931 states and 58189 transitions. Second operand has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 26 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:35,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:56:35,674 INFO L93 Difference]: Finished difference Result 87583 states and 104077 transitions. [2023-12-25 07:56:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:56:35,674 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 26 states have internal predecessors, (348), 0 states have call successors, (0), 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 182 [2023-12-25 07:56:35,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:56:35,762 INFO L225 Difference]: With dead ends: 87583 [2023-12-25 07:56:35,762 INFO L226 Difference]: Without dead ends: 76469 [2023-12-25 07:56:35,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:56:35,777 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1305 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:56:35,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 2788 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 07:56:35,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76469 states. [2023-12-25 07:56:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76469 to 62561. [2023-12-25 07:56:39,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62561 states, 62560 states have (on average 1.1878037084398978) internal successors, (74309), 62560 states have internal predecessors, (74309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62561 states to 62561 states and 74309 transitions. [2023-12-25 07:56:39,627 INFO L78 Accepts]: Start accepts. Automaton has 62561 states and 74309 transitions. Word has length 182 [2023-12-25 07:56:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:56:39,628 INFO L495 AbstractCegarLoop]: Abstraction has 62561 states and 74309 transitions. [2023-12-25 07:56:39,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.384615384615385) internal successors, (348), 26 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 62561 states and 74309 transitions. [2023-12-25 07:56:39,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:56:39,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:56:39,635 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:56:39,638 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 (38)] Ended with exit code 0 [2023-12-25 07:56:39,838 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 [2023-12-25 07:56:39,838 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:56:39,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:56:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash -22366429, now seen corresponding path program 1 times [2023-12-25 07:56:39,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:56:39,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760784309] [2023-12-25 07:56:39,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:56:39,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:56:39,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:56:39,840 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) [2023-12-25 07:56:39,842 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 (39)] Waiting until timeout for monitored process [2023-12-25 07:56:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:56:39,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:56:39,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:56:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 40 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:41,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:56:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 40 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:56:41,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:56:41,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760784309] [2023-12-25 07:56:41,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760784309] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:56:41,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:56:41,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:56:41,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322416757] [2023-12-25 07:56:41,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:56:41,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:56:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:56:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:56:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:56:41,809 INFO L87 Difference]: Start difference. First operand 62561 states and 74309 transitions. Second operand has 26 states, 26 states have (on average 13.192307692307692) internal successors, (343), 26 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:56:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:56:54,896 INFO L93 Difference]: Finished difference Result 192553 states and 227885 transitions. [2023-12-25 07:56:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:56:54,897 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.192307692307692) internal successors, (343), 26 states have internal predecessors, (343), 0 states have call successors, (0), 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 182 [2023-12-25 07:56:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:56:55,133 INFO L225 Difference]: With dead ends: 192553 [2023-12-25 07:56:55,134 INFO L226 Difference]: Without dead ends: 177491 [2023-12-25 07:56:55,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:56:55,163 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 882 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:56:55,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3698 Invalid, 3390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 07:56:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177491 states. [2023-12-25 07:57:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177491 to 142459. [2023-12-25 07:57:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142459 states, 142458 states have (on average 1.1843911889820158) internal successors, (168726), 142458 states have internal predecessors, (168726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:57:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142459 states to 142459 states and 168726 transitions. [2023-12-25 07:57:03,754 INFO L78 Accepts]: Start accepts. Automaton has 142459 states and 168726 transitions. Word has length 182 [2023-12-25 07:57:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:57:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 142459 states and 168726 transitions. [2023-12-25 07:57:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.192307692307692) internal successors, (343), 26 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:57:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 142459 states and 168726 transitions. [2023-12-25 07:57:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:57:03,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:57:03,771 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:57:03,774 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 [2023-12-25 07:57:03,972 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 [2023-12-25 07:57:03,973 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:57:03,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:57:03,973 INFO L85 PathProgramCache]: Analyzing trace with hash 987635875, now seen corresponding path program 1 times [2023-12-25 07:57:03,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:57:03,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923151811] [2023-12-25 07:57:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:57:03,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:57:03,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:57:03,975 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) [2023-12-25 07:57:03,998 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 [2023-12-25 07:57:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:57:04,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:57:04,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:57:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 58 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:57:05,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:57:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 58 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:57:05,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:57:05,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923151811] [2023-12-25 07:57:05,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923151811] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:57:05,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:57:05,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:57:05,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805920616] [2023-12-25 07:57:05,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:57:05,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:57:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:57:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:57:05,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:57:05,866 INFO L87 Difference]: Start difference. First operand 142459 states and 168726 transitions. Second operand has 26 states, 26 states have (on average 12.807692307692308) internal successors, (333), 26 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:57:21,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:57:21,799 INFO L93 Difference]: Finished difference Result 267066 states and 315830 transitions. [2023-12-25 07:57:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 07:57:21,800 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.807692307692308) internal successors, (333), 26 states have internal predecessors, (333), 0 states have call successors, (0), 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 182 [2023-12-25 07:57:21,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:57:22,139 INFO L225 Difference]: With dead ends: 267066 [2023-12-25 07:57:22,140 INFO L226 Difference]: Without dead ends: 229644 [2023-12-25 07:57:22,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-25 07:57:22,194 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1167 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 3532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:57:22,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 3869 Invalid, 3532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 07:57:22,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229644 states. [2023-12-25 07:57:32,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229644 to 175032. [2023-12-25 07:57:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175032 states, 175031 states have (on average 1.182436254149265) internal successors, (206963), 175031 states have internal predecessors, (206963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:57:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175032 states to 175032 states and 206963 transitions. [2023-12-25 07:57:33,112 INFO L78 Accepts]: Start accepts. Automaton has 175032 states and 206963 transitions. Word has length 182 [2023-12-25 07:57:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:57:33,112 INFO L495 AbstractCegarLoop]: Abstraction has 175032 states and 206963 transitions. [2023-12-25 07:57:33,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.807692307692308) internal successors, (333), 26 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:57:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 175032 states and 206963 transitions. [2023-12-25 07:57:33,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:57:33,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:57:33,127 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-25 07:57:33,130 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 [2023-12-25 07:57:33,331 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 [2023-12-25 07:57:33,332 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:57:33,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:57:33,332 INFO L85 PathProgramCache]: Analyzing trace with hash 614400127, now seen corresponding path program 1 times [2023-12-25 07:57:33,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:57:33,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217535830] [2023-12-25 07:57:33,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:57:33,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:57:33,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:57:33,333 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) [2023-12-25 07:57:33,335 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 [2023-12-25 07:57:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:57:33,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:57:33,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:57:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 67 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:57:34,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:57:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 67 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:57:35,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:57:35,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217535830] [2023-12-25 07:57:35,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217535830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:57:35,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:57:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:57:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720608556] [2023-12-25 07:57:35,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:57:35,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:57:35,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:57:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:57:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:57:35,359 INFO L87 Difference]: Start difference. First operand 175032 states and 206963 transitions. Second operand has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 26 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:58:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:58:05,766 INFO L93 Difference]: Finished difference Result 527236 states and 616358 transitions. [2023-12-25 07:58:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 07:58:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 26 states have internal predecessors, (328), 0 states have call successors, (0), 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 182 [2023-12-25 07:58:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:58:06,609 INFO L225 Difference]: With dead ends: 527236 [2023-12-25 07:58:06,609 INFO L226 Difference]: Without dead ends: 475600 [2023-12-25 07:58:06,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 07:58:06,733 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 955 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 3405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:58:06,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 3597 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3405 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 07:58:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475600 states.