/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/eca-rers2012/Problem03_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 03:40:24,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 03:40:24,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 03:40:24,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 03:40:24,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 03:40:24,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 03:40:24,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 03:40:24,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 03:40:24,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 03:40:24,721 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 03:40:24,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 03:40:24,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 03:40:24,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 03:40:24,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 03:40:24,723 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 03:40:24,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 03:40:24,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 03:40:24,724 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 03:40:24,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 03:40:24,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 03:40:24,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 03:40:24,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 03:40:24,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 03:40:24,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 03:40:24,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:40:24,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 03:40:24,727 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 03:40:24,728 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 03:40:24,729 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 03:40:24,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 03:40:24,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 03:40:24,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 03:40:24,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 03:40:24,904 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 03:40:24,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label36.c [2023-12-22 03:40:25,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 03:40:26,219 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 03:40:26,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label36.c [2023-12-22 03:40:26,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b60bb3493/decf14c74e91469f8ec00cafd3183127/FLAGc5b7507ed [2023-12-22 03:40:26,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b60bb3493/decf14c74e91469f8ec00cafd3183127 [2023-12-22 03:40:26,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 03:40:26,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 03:40:26,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 03:40:26,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 03:40:26,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 03:40:26,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:26,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604dadc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26, skipping insertion in model container [2023-12-22 03:40:26,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:26,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 03:40:26,683 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label36.c[58393,58406] [2023-12-22 03:40:26,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:40:26,723 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 03:40:26,891 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label36.c[58393,58406] [2023-12-22 03:40:26,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 03:40:26,912 INFO L206 MainTranslator]: Completed translation [2023-12-22 03:40:26,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26 WrapperNode [2023-12-22 03:40:26,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 03:40:26,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 03:40:26,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 03:40:26,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 03:40:26,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:26,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,014 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-22 03:40:27,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 03:40:27,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 03:40:27,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 03:40:27,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 03:40:27,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,082 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 03:40:27,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 03:40:27,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 03:40:27,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 03:40:27,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 03:40:27,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (1/1) ... [2023-12-22 03:40:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 03:40:27,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 03:40:27,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 03:40:27,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 03:40:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 03:40:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 03:40:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 03:40:27,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 03:40:27,291 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 03:40:27,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 03:40:28,883 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 03:40:28,948 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 03:40:28,948 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 03:40:28,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:40:28 BoogieIcfgContainer [2023-12-22 03:40:28,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 03:40:28,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 03:40:28,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 03:40:28,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 03:40:28,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:40:26" (1/3) ... [2023-12-22 03:40:28,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ec93f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:40:28, skipping insertion in model container [2023-12-22 03:40:28,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:40:26" (2/3) ... [2023-12-22 03:40:28,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ec93f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:40:28, skipping insertion in model container [2023-12-22 03:40:28,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:40:28" (3/3) ... [2023-12-22 03:40:28,953 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label36.c [2023-12-22 03:40:28,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 03:40:28,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 03:40:29,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 03:40:29,006 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;@6fd54c58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 03:40:29,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 03:40:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-22 03:40:29,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:40:29,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:40:29,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:40:29,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:40:29,025 INFO L85 PathProgramCache]: Analyzing trace with hash 512171391, now seen corresponding path program 1 times [2023-12-22 03:40:29,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:40:29,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887864378] [2023-12-22 03:40:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:40:29,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:40:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:40:29,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:40:29,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 03:40:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:40:29,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 03:40:29,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:40:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:40:29,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:40:29,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:40:29,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887864378] [2023-12-22 03:40:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887864378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:40:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:40:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:40:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69835068] [2023-12-22 03:40:29,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:40:29,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 03:40:29,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:40:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 03:40:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 03:40:29,313 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 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 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:40:29,354 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-22 03:40:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 03:40:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 [2023-12-22 03:40:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:40:29,363 INFO L225 Difference]: With dead ends: 479 [2023-12-22 03:40:29,363 INFO L226 Difference]: Without dead ends: 238 [2023-12-22 03:40:29,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 03:40:29,368 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 03:40:29,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 03:40:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-22 03:40:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-22 03:40:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-22 03:40:29,398 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 178 [2023-12-22 03:40:29,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:40:29,399 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-22 03:40:29,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:29,399 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-22 03:40:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-22 03:40:29,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:40:29,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:40:29,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 03:40:29,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:40:29,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:40:29,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:40:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1099174822, now seen corresponding path program 1 times [2023-12-22 03:40:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:40:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277062936] [2023-12-22 03:40:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:40:29,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:40:29,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:40:29,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:40:29,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 03:40:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:40:29,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-22 03:40:29,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:40:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:40:41,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:40:41,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:40:41,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277062936] [2023-12-22 03:40:41,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277062936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:40:41,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:40:41,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 03:40:41,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241168477] [2023-12-22 03:40:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:40:41,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 03:40:41,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:40:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 03:40:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-22 03:40:41,558 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:40:44,337 INFO L93 Difference]: Finished difference Result 588 states and 1007 transitions. [2023-12-22 03:40:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 03:40:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 0 states have call successors, (0), 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 [2023-12-22 03:40:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:40:44,339 INFO L225 Difference]: With dead ends: 588 [2023-12-22 03:40:44,339 INFO L226 Difference]: Without dead ends: 351 [2023-12-22 03:40:44,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-22 03:40:44,341 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 418 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:40:44,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 372 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-22 03:40:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-22 03:40:44,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-22 03:40:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.46) internal successors, (511), 350 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 511 transitions. [2023-12-22 03:40:44,353 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 511 transitions. Word has length 178 [2023-12-22 03:40:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:40:44,353 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 511 transitions. [2023-12-22 03:40:44,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:40:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 511 transitions. [2023-12-22 03:40:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-22 03:40:44,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:40:44,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:40:44,362 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 [2023-12-22 03:40:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:40:44,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:40:44,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:40:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1029964213, now seen corresponding path program 1 times [2023-12-22 03:40:44,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:40:44,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963020948] [2023-12-22 03:40:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:40:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:40:44,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:40:44,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:40:44,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 03:40:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:40:44,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-22 03:40:44,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:41:04,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:04,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963020948] [2023-12-22 03:41:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963020948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:04,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:04,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-22 03:41:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148068228] [2023-12-22 03:41:04,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:04,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 03:41:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:04,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 03:41:04,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-22 03:41:04,154 INFO L87 Difference]: Start difference. First operand 351 states and 511 transitions. Second operand has 11 states, 11 states have (on average 16.818181818181817) internal successors, (185), 10 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:08,940 INFO L93 Difference]: Finished difference Result 1141 states and 1873 transitions. [2023-12-22 03:41:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-22 03:41:08,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.818181818181817) internal successors, (185), 10 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2023-12-22 03:41:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:08,944 INFO L225 Difference]: With dead ends: 1141 [2023-12-22 03:41:08,945 INFO L226 Difference]: Without dead ends: 904 [2023-12-22 03:41:08,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-12-22 03:41:08,947 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 1165 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 4091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:08,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 177 Invalid, 4091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-22 03:41:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-12-22 03:41:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 903. [2023-12-22 03:41:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 902 states have (on average 1.3381374722838137) internal successors, (1207), 902 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1207 transitions. [2023-12-22 03:41:08,995 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1207 transitions. Word has length 185 [2023-12-22 03:41:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:08,995 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1207 transitions. [2023-12-22 03:41:08,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.818181818181817) internal successors, (185), 10 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1207 transitions. [2023-12-22 03:41:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-22 03:41:09,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:09,007 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:09,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:09,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:09,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:09,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1491330817, now seen corresponding path program 1 times [2023-12-22 03:41:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075260754] [2023-12-22 03:41:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:09,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:09,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:09,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:09,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 03:41:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:09,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:41:09,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-22 03:41:09,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:09,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075260754] [2023-12-22 03:41:09,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075260754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:09,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:09,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489585353] [2023-12-22 03:41:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:09,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:41:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:41:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:09,458 INFO L87 Difference]: Start difference. First operand 903 states and 1207 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:11,277 INFO L93 Difference]: Finished difference Result 2193 states and 3313 transitions. [2023-12-22 03:41:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:41:11,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 205 [2023-12-22 03:41:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:11,283 INFO L225 Difference]: With dead ends: 2193 [2023-12-22 03:41:11,283 INFO L226 Difference]: Without dead ends: 1749 [2023-12-22 03:41:11,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:11,286 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 552 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:11,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 140 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-22 03:41:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2023-12-22 03:41:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1744. [2023-12-22 03:41:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4417670682730923) internal successors, (2513), 1743 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2513 transitions. [2023-12-22 03:41:11,323 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2513 transitions. Word has length 205 [2023-12-22 03:41:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:11,323 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2513 transitions. [2023-12-22 03:41:11,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2513 transitions. [2023-12-22 03:41:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-22 03:41:11,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:11,326 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:11,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:11,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:11,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:11,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash 572085923, now seen corresponding path program 1 times [2023-12-22 03:41:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:11,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802244467] [2023-12-22 03:41:11,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:11,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:11,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:11,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:11,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 03:41:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:11,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:11,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-22 03:41:11,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:11,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:11,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802244467] [2023-12-22 03:41:11,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802244467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:11,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:11,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:11,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991003890] [2023-12-22 03:41:11,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:11,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:11,857 INFO L87 Difference]: Start difference. First operand 1744 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:12,822 INFO L93 Difference]: Finished difference Result 4268 states and 6503 transitions. [2023-12-22 03:41:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:12,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 212 [2023-12-22 03:41:12,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:12,832 INFO L225 Difference]: With dead ends: 4268 [2023-12-22 03:41:12,833 INFO L226 Difference]: Without dead ends: 2982 [2023-12-22 03:41:12,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:12,838 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 66 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:12,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 206 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:41:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2023-12-22 03:41:12,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2978. [2023-12-22 03:41:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2977 states have (on average 1.4249244205576084) internal successors, (4242), 2977 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4242 transitions. [2023-12-22 03:41:12,887 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4242 transitions. Word has length 212 [2023-12-22 03:41:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:12,888 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4242 transitions. [2023-12-22 03:41:12,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4242 transitions. [2023-12-22 03:41:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-22 03:41:12,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:12,897 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:12,901 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 [2023-12-22 03:41:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:13,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:13,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:13,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1143422355, now seen corresponding path program 1 times [2023-12-22 03:41:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812650621] [2023-12-22 03:41:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:13,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:13,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:13,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:13,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 03:41:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:13,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:13,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-22 03:41:13,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:13,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812650621] [2023-12-22 03:41:13,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812650621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:13,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:13,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:13,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459594119] [2023-12-22 03:41:13,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:13,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:13,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:13,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:13,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:13,249 INFO L87 Difference]: Start difference. First operand 2978 states and 4242 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:14,186 INFO L93 Difference]: Finished difference Result 7945 states and 11663 transitions. [2023-12-22 03:41:14,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:14,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 216 [2023-12-22 03:41:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:14,200 INFO L225 Difference]: With dead ends: 7945 [2023-12-22 03:41:14,201 INFO L226 Difference]: Without dead ends: 5424 [2023-12-22 03:41:14,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:14,211 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 216 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:14,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 398 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:41:14,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5424 states. [2023-12-22 03:41:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 4199. [2023-12-22 03:41:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4199 states, 4198 states have (on average 1.3373034778465935) internal successors, (5614), 4198 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:14,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 5614 transitions. [2023-12-22 03:41:14,274 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 5614 transitions. Word has length 216 [2023-12-22 03:41:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:14,274 INFO L495 AbstractCegarLoop]: Abstraction has 4199 states and 5614 transitions. [2023-12-22 03:41:14,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 5614 transitions. [2023-12-22 03:41:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-22 03:41:14,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:14,279 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:14,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:14,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:14,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:14,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1455481630, now seen corresponding path program 1 times [2023-12-22 03:41:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712377024] [2023-12-22 03:41:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:14,485 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:14,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 03:41:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:14,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:41:14,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:14,729 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:41:14,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:14,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:14,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712377024] [2023-12-22 03:41:14,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712377024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:14,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:14,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:14,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107099560] [2023-12-22 03:41:14,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:14,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:41:14,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:14,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:41:14,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:14,731 INFO L87 Difference]: Start difference. First operand 4199 states and 5614 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:16,507 INFO L93 Difference]: Finished difference Result 13662 states and 18882 transitions. [2023-12-22 03:41:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:41:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2023-12-22 03:41:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:16,534 INFO L225 Difference]: With dead ends: 13662 [2023-12-22 03:41:16,535 INFO L226 Difference]: Without dead ends: 9920 [2023-12-22 03:41:16,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:16,542 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 405 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:16,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 289 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-22 03:41:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9920 states. [2023-12-22 03:41:16,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9920 to 9889. [2023-12-22 03:41:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9889 states, 9888 states have (on average 1.296217637540453) internal successors, (12817), 9888 states have internal predecessors, (12817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9889 states to 9889 states and 12817 transitions. [2023-12-22 03:41:16,686 INFO L78 Accepts]: Start accepts. Automaton has 9889 states and 12817 transitions. Word has length 226 [2023-12-22 03:41:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:16,687 INFO L495 AbstractCegarLoop]: Abstraction has 9889 states and 12817 transitions. [2023-12-22 03:41:16,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:16,687 INFO L276 IsEmpty]: Start isEmpty. Operand 9889 states and 12817 transitions. [2023-12-22 03:41:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-22 03:41:16,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:16,694 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:16,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:16,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:16,897 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:16,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:16,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1180903423, now seen corresponding path program 1 times [2023-12-22 03:41:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:16,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045152306] [2023-12-22 03:41:16,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:16,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:16,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:16,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:16,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 03:41:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:17,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:41:17,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-22 03:41:17,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:17,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:17,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045152306] [2023-12-22 03:41:17,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045152306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:17,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:17,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984315450] [2023-12-22 03:41:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:17,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:41:17,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:41:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:17,185 INFO L87 Difference]: Start difference. First operand 9889 states and 12817 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:18,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:18,452 INFO L93 Difference]: Finished difference Result 19290 states and 25121 transitions. [2023-12-22 03:41:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:41:18,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 234 [2023-12-22 03:41:18,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:18,479 INFO L225 Difference]: With dead ends: 19290 [2023-12-22 03:41:18,479 INFO L226 Difference]: Without dead ends: 9858 [2023-12-22 03:41:18,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:18,492 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 465 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:18,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 51 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 03:41:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9858 states. [2023-12-22 03:41:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9858 to 9858. [2023-12-22 03:41:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9858 states, 9857 states have (on average 1.2032058435629502) internal successors, (11860), 9857 states have internal predecessors, (11860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9858 states to 9858 states and 11860 transitions. [2023-12-22 03:41:18,657 INFO L78 Accepts]: Start accepts. Automaton has 9858 states and 11860 transitions. Word has length 234 [2023-12-22 03:41:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:18,657 INFO L495 AbstractCegarLoop]: Abstraction has 9858 states and 11860 transitions. [2023-12-22 03:41:18,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9858 states and 11860 transitions. [2023-12-22 03:41:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 03:41:18,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:18,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:18,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:18,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:18,871 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:18,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1798562057, now seen corresponding path program 1 times [2023-12-22 03:41:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:18,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286816104] [2023-12-22 03:41:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:18,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:18,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:18,877 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:18,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 03:41:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:19,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:41:19,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-22 03:41:19,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:19,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:19,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286816104] [2023-12-22 03:41:19,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286816104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:19,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:19,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:41:19,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294019394] [2023-12-22 03:41:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:19,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:19,154 INFO L87 Difference]: Start difference. First operand 9858 states and 11860 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:20,162 INFO L93 Difference]: Finished difference Result 22513 states and 27423 transitions. [2023-12-22 03:41:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 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 247 [2023-12-22 03:41:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:20,181 INFO L225 Difference]: With dead ends: 22513 [2023-12-22 03:41:20,182 INFO L226 Difference]: Without dead ends: 12909 [2023-12-22 03:41:20,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:20,194 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 188 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:20,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 157 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:41:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2023-12-22 03:41:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12091. [2023-12-22 03:41:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12091 states, 12090 states have (on average 1.185277088502895) internal successors, (14330), 12090 states have internal predecessors, (14330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12091 states to 12091 states and 14330 transitions. [2023-12-22 03:41:20,342 INFO L78 Accepts]: Start accepts. Automaton has 12091 states and 14330 transitions. Word has length 247 [2023-12-22 03:41:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:20,342 INFO L495 AbstractCegarLoop]: Abstraction has 12091 states and 14330 transitions. [2023-12-22 03:41:20,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 12091 states and 14330 transitions. [2023-12-22 03:41:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-22 03:41:20,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:20,350 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:20,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:20,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:20,554 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:20,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:20,558 INFO L85 PathProgramCache]: Analyzing trace with hash 518425666, now seen corresponding path program 1 times [2023-12-22 03:41:20,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:20,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463236733] [2023-12-22 03:41:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:20,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:20,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:20,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:20,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 03:41:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:20,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:20,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-22 03:41:20,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:20,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:20,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463236733] [2023-12-22 03:41:20,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463236733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:20,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:20,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:20,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559241111] [2023-12-22 03:41:20,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:20,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:20,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:20,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:20,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:20,738 INFO L87 Difference]: Start difference. First operand 12091 states and 14330 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:21,749 INFO L93 Difference]: Finished difference Result 34083 states and 40544 transitions. [2023-12-22 03:41:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:21,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 264 [2023-12-22 03:41:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:21,782 INFO L225 Difference]: With dead ends: 34083 [2023-12-22 03:41:21,783 INFO L226 Difference]: Without dead ends: 22246 [2023-12-22 03:41:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:21,796 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 219 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:21,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 236 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:41:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22246 states. [2023-12-22 03:41:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22246 to 20414. [2023-12-22 03:41:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20414 states, 20413 states have (on average 1.1677362465095773) internal successors, (23837), 20413 states have internal predecessors, (23837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20414 states to 20414 states and 23837 transitions. [2023-12-22 03:41:22,056 INFO L78 Accepts]: Start accepts. Automaton has 20414 states and 23837 transitions. Word has length 264 [2023-12-22 03:41:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:22,056 INFO L495 AbstractCegarLoop]: Abstraction has 20414 states and 23837 transitions. [2023-12-22 03:41:22,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 20414 states and 23837 transitions. [2023-12-22 03:41:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-22 03:41:22,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:22,068 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:22,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:22,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:22,271 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:22,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:22,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1778729624, now seen corresponding path program 1 times [2023-12-22 03:41:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:22,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368013127] [2023-12-22 03:41:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:22,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:22,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:22,275 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:22,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 03:41:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:22,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:41:22,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-22 03:41:22,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:22,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:22,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368013127] [2023-12-22 03:41:22,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368013127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:22,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:22,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:41:22,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105645506] [2023-12-22 03:41:22,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:22,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:41:22,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:22,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:41:22,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:41:22,731 INFO L87 Difference]: Start difference. First operand 20414 states and 23837 transitions. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:24,331 INFO L93 Difference]: Finished difference Result 77435 states and 90642 transitions. [2023-12-22 03:41:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:41:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 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 297 [2023-12-22 03:41:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:24,412 INFO L225 Difference]: With dead ends: 77435 [2023-12-22 03:41:24,413 INFO L226 Difference]: Without dead ends: 57275 [2023-12-22 03:41:24,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:41:24,439 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1259 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:24,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 611 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 03:41:24,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57275 states. [2023-12-22 03:41:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57275 to 57266. [2023-12-22 03:41:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57266 states, 57265 states have (on average 1.1683227102069327) internal successors, (66904), 57265 states have internal predecessors, (66904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:25,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57266 states to 57266 states and 66904 transitions. [2023-12-22 03:41:25,325 INFO L78 Accepts]: Start accepts. Automaton has 57266 states and 66904 transitions. Word has length 297 [2023-12-22 03:41:25,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:25,326 INFO L495 AbstractCegarLoop]: Abstraction has 57266 states and 66904 transitions. [2023-12-22 03:41:25,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:25,326 INFO L276 IsEmpty]: Start isEmpty. Operand 57266 states and 66904 transitions. [2023-12-22 03:41:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-22 03:41:25,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:25,339 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:25,345 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 (12)] Ended with exit code 0 [2023-12-22 03:41:25,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:25,546 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:25,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:25,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1181708537, now seen corresponding path program 1 times [2023-12-22 03:41:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:25,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841120401] [2023-12-22 03:41:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:25,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:25,549 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:25,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 03:41:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:25,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:25,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-12-22 03:41:25,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:25,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:25,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841120401] [2023-12-22 03:41:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841120401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:25,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701255553] [2023-12-22 03:41:25,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:25,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:25,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:25,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:25,846 INFO L87 Difference]: Start difference. First operand 57266 states and 66904 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:27,169 INFO L93 Difference]: Finished difference Result 143548 states and 168219 transitions. [2023-12-22 03:41:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 298 [2023-12-22 03:41:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:27,442 INFO L225 Difference]: With dead ends: 143548 [2023-12-22 03:41:27,442 INFO L226 Difference]: Without dead ends: 86536 [2023-12-22 03:41:27,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:27,536 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 199 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:27,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 280 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 03:41:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86536 states. [2023-12-22 03:41:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86536 to 86512. [2023-12-22 03:41:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86512 states, 86511 states have (on average 1.1584538382402239) internal successors, (100219), 86511 states have internal predecessors, (100219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86512 states to 86512 states and 100219 transitions. [2023-12-22 03:41:28,794 INFO L78 Accepts]: Start accepts. Automaton has 86512 states and 100219 transitions. Word has length 298 [2023-12-22 03:41:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:28,794 INFO L495 AbstractCegarLoop]: Abstraction has 86512 states and 100219 transitions. [2023-12-22 03:41:28,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 86512 states and 100219 transitions. [2023-12-22 03:41:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-22 03:41:28,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:28,928 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:28,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-22 03:41:29,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:29,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:29,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1132744928, now seen corresponding path program 1 times [2023-12-22 03:41:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:29,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678125797] [2023-12-22 03:41:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:29,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:29,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:29,135 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:29,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 03:41:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:29,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:41:29,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-22 03:41:29,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:29,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678125797] [2023-12-22 03:41:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678125797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:29,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:41:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767019167] [2023-12-22 03:41:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:29,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:29,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:29,581 INFO L87 Difference]: Start difference. First operand 86512 states and 100219 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:30,926 INFO L93 Difference]: Finished difference Result 192695 states and 222200 transitions. [2023-12-22 03:41:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:30,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 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 303 [2023-12-22 03:41:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:31,075 INFO L225 Difference]: With dead ends: 192695 [2023-12-22 03:41:31,076 INFO L226 Difference]: Without dead ends: 106437 [2023-12-22 03:41:31,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:31,304 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 121 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:31,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 244 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:41:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106437 states. [2023-12-22 03:41:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106437 to 106405. [2023-12-22 03:41:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106405 states, 106404 states have (on average 1.1236607646329084) internal successors, (119562), 106404 states have internal predecessors, (119562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:32,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106405 states to 106405 states and 119562 transitions. [2023-12-22 03:41:32,775 INFO L78 Accepts]: Start accepts. Automaton has 106405 states and 119562 transitions. Word has length 303 [2023-12-22 03:41:32,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:32,775 INFO L495 AbstractCegarLoop]: Abstraction has 106405 states and 119562 transitions. [2023-12-22 03:41:32,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 106405 states and 119562 transitions. [2023-12-22 03:41:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-22 03:41:32,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:32,802 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 03:41:32,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:33,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:33,005 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:33,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash 719393915, now seen corresponding path program 1 times [2023-12-22 03:41:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860722970] [2023-12-22 03:41:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:33,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:33,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:33,009 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:33,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 03:41:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:33,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:33,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-22 03:41:33,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:33,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:33,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860722970] [2023-12-22 03:41:33,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860722970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:33,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:33,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 03:41:33,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720920651] [2023-12-22 03:41:33,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:33,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:33,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:33,456 INFO L87 Difference]: Start difference. First operand 106405 states and 119562 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:34,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:34,962 INFO L93 Difference]: Finished difference Result 207699 states and 233792 transitions. [2023-12-22 03:41:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:34,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2023-12-22 03:41:34,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:35,108 INFO L225 Difference]: With dead ends: 207699 [2023-12-22 03:41:35,108 INFO L226 Difference]: Without dead ends: 101548 [2023-12-22 03:41:35,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:35,154 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 114 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:35,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 169 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:41:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101548 states. [2023-12-22 03:41:36,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101548 to 101533. [2023-12-22 03:41:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101533 states, 101532 states have (on average 1.1052870031123192) internal successors, (112222), 101532 states have internal predecessors, (112222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101533 states to 101533 states and 112222 transitions. [2023-12-22 03:41:36,636 INFO L78 Accepts]: Start accepts. Automaton has 101533 states and 112222 transitions. Word has length 337 [2023-12-22 03:41:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:36,637 INFO L495 AbstractCegarLoop]: Abstraction has 101533 states and 112222 transitions. [2023-12-22 03:41:36,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 101533 states and 112222 transitions. [2023-12-22 03:41:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-12-22 03:41:36,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:36,654 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 03:41:36,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 03:41:36,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:36,858 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:36,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash -888233433, now seen corresponding path program 1 times [2023-12-22 03:41:36,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:36,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722251800] [2023-12-22 03:41:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:36,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:36,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:36,862 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:36,864 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 (16)] Waiting until timeout for monitored process [2023-12-22 03:41:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:37,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 03:41:37,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 03:41:37,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:37,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722251800] [2023-12-22 03:41:37,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722251800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:37,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810944108] [2023-12-22 03:41:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:37,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:41:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:41:37,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:37,557 INFO L87 Difference]: Start difference. First operand 101533 states and 112222 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:39,556 INFO L93 Difference]: Finished difference Result 220334 states and 244557 transitions. [2023-12-22 03:41:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:41:39,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 354 [2023-12-22 03:41:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:39,732 INFO L225 Difference]: With dead ends: 220334 [2023-12-22 03:41:39,732 INFO L226 Difference]: Without dead ends: 119055 [2023-12-22 03:41:39,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:41:39,807 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 342 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:39,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 186 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 03:41:39,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119055 states. [2023-12-22 03:41:41,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119055 to 115947. [2023-12-22 03:41:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115947 states, 115946 states have (on average 1.0794249046970141) internal successors, (125155), 115946 states have internal predecessors, (125155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115947 states to 115947 states and 125155 transitions. [2023-12-22 03:41:41,634 INFO L78 Accepts]: Start accepts. Automaton has 115947 states and 125155 transitions. Word has length 354 [2023-12-22 03:41:41,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:41,635 INFO L495 AbstractCegarLoop]: Abstraction has 115947 states and 125155 transitions. [2023-12-22 03:41:41,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 115947 states and 125155 transitions. [2023-12-22 03:41:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-22 03:41:41,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:41,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:41:41,724 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 (16)] Ended with exit code 0 [2023-12-22 03:41:41,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:41,925 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:41,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:41,925 INFO L85 PathProgramCache]: Analyzing trace with hash -356386034, now seen corresponding path program 1 times [2023-12-22 03:41:41,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:41,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755820772] [2023-12-22 03:41:41,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:41,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:41,929 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:41,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 03:41:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:42,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 03:41:42,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:41:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-22 03:41:42,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:41:42,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:41:42,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755820772] [2023-12-22 03:41:42,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755820772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:41:42,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:41:42,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:41:42,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161729316] [2023-12-22 03:41:42,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:41:42,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 03:41:42,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:41:42,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 03:41:42,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:42,243 INFO L87 Difference]: Start difference. First operand 115947 states and 125155 transitions. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:41:43,931 INFO L93 Difference]: Finished difference Result 246296 states and 266545 transitions. [2023-12-22 03:41:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 03:41:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 423 [2023-12-22 03:41:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:41:44,102 INFO L225 Difference]: With dead ends: 246296 [2023-12-22 03:41:44,103 INFO L226 Difference]: Without dead ends: 130603 [2023-12-22 03:41:44,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 03:41:44,159 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 151 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 03:41:44,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 116 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 03:41:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130603 states. [2023-12-22 03:41:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130603 to 125280. [2023-12-22 03:41:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125280 states, 125279 states have (on average 1.0793349244486306) internal successors, (135218), 125279 states have internal predecessors, (135218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125280 states to 125280 states and 135218 transitions. [2023-12-22 03:41:46,110 INFO L78 Accepts]: Start accepts. Automaton has 125280 states and 135218 transitions. Word has length 423 [2023-12-22 03:41:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:41:46,128 INFO L495 AbstractCegarLoop]: Abstraction has 125280 states and 135218 transitions. [2023-12-22 03:41:46,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:41:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 125280 states and 135218 transitions. [2023-12-22 03:41:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-12-22 03:41:46,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:41:46,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2023-12-22 03:41:46,173 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 (17)] Ended with exit code 0 [2023-12-22 03:41:46,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:46,364 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:41:46,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:41:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash -495562876, now seen corresponding path program 1 times [2023-12-22 03:41:46,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:41:46,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733911551] [2023-12-22 03:41:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:41:46,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:41:46,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:41:46,368 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:41:46,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 03:41:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:41:46,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-22 03:41:46,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:42:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 66 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:42:05,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 03:42:29,275 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 114 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 03:42:29,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:42:29,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733911551] [2023-12-22 03:42:29,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733911551] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 03:42:29,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 03:42:29,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2023-12-22 03:42:29,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188993704] [2023-12-22 03:42:29,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 03:42:29,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-22 03:42:29,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:42:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-22 03:42:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2023-12-22 03:42:29,278 INFO L87 Difference]: Start difference. First operand 125280 states and 135218 transitions. Second operand has 24 states, 24 states have (on average 28.958333333333332) internal successors, (695), 23 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:37,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:42:37,249 INFO L93 Difference]: Finished difference Result 267082 states and 288009 transitions. [2023-12-22 03:42:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 03:42:37,250 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 28.958333333333332) internal successors, (695), 23 states have internal predecessors, (695), 0 states have call successors, (0), 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 438 [2023-12-22 03:42:37,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:42:37,428 INFO L225 Difference]: With dead ends: 267082 [2023-12-22 03:42:37,429 INFO L226 Difference]: Without dead ends: 126416 [2023-12-22 03:42:37,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2023-12-22 03:42:37,513 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 2153 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 6305 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 6425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 6305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-22 03:42:37,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 346 Invalid, 6425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 6305 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-22 03:42:37,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126416 states. [2023-12-22 03:42:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126416 to 126415. [2023-12-22 03:42:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126415 states, 126414 states have (on average 1.078820383818248) internal successors, (136378), 126414 states have internal predecessors, (136378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126415 states to 126415 states and 136378 transitions. [2023-12-22 03:42:38,862 INFO L78 Accepts]: Start accepts. Automaton has 126415 states and 136378 transitions. Word has length 438 [2023-12-22 03:42:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:42:38,862 INFO L495 AbstractCegarLoop]: Abstraction has 126415 states and 136378 transitions. [2023-12-22 03:42:38,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 28.958333333333332) internal successors, (695), 23 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 126415 states and 136378 transitions. [2023-12-22 03:42:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-12-22 03:42:38,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:42:38,899 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 03:42:38,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 03:42:39,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:42:39,101 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:42:39,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:42:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1897883546, now seen corresponding path program 1 times [2023-12-22 03:42:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:42:39,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348917827] [2023-12-22 03:42:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:42:39,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:42:39,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:42:39,105 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:42:39,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 03:42:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:42:39,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:42:39,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:42:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-22 03:42:39,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:42:39,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:42:39,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348917827] [2023-12-22 03:42:39,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348917827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:42:39,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:42:39,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 03:42:39,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981345706] [2023-12-22 03:42:39,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:42:39,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 03:42:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:42:39,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 03:42:39,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:42:39,805 INFO L87 Difference]: Start difference. First operand 126415 states and 136378 transitions. Second operand has 5 states, 5 states have (on average 66.2) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:42:42,921 INFO L93 Difference]: Finished difference Result 468923 states and 505696 transitions. [2023-12-22 03:42:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 03:42:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.2) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 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 447 [2023-12-22 03:42:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:42:43,365 INFO L225 Difference]: With dead ends: 468923 [2023-12-22 03:42:43,365 INFO L226 Difference]: Without dead ends: 343094 [2023-12-22 03:42:43,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 03:42:43,502 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 900 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 03:42:43,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 477 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 03:42:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343094 states. [2023-12-22 03:42:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343094 to 341030. [2023-12-22 03:42:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341030 states, 341029 states have (on average 1.0783657694800148) internal successors, (367754), 341029 states have internal predecessors, (367754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341030 states to 341030 states and 367754 transitions. [2023-12-22 03:42:50,227 INFO L78 Accepts]: Start accepts. Automaton has 341030 states and 367754 transitions. Word has length 447 [2023-12-22 03:42:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 03:42:50,227 INFO L495 AbstractCegarLoop]: Abstraction has 341030 states and 367754 transitions. [2023-12-22 03:42:50,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.2) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 341030 states and 367754 transitions. [2023-12-22 03:42:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-12-22 03:42:50,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 03:42:50,309 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2023-12-22 03:42:50,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 03:42:50,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:42:50,514 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 03:42:50,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 03:42:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash -350421973, now seen corresponding path program 1 times [2023-12-22 03:42:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 03:42:50,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110091883] [2023-12-22 03:42:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 03:42:50,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 03:42:50,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 03:42:50,565 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 03:42:50,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 03:42:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 03:42:51,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 03:42:51,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 03:42:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-12-22 03:42:51,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 03:42:51,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 03:42:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110091883] [2023-12-22 03:42:51,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110091883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 03:42:51,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 03:42:51,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 03:42:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648012273] [2023-12-22 03:42:51,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 03:42:51,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 03:42:51,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 03:42:51,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 03:42:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:42:51,449 INFO L87 Difference]: Start difference. First operand 341030 states and 367754 transitions. Second operand has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 03:42:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 03:42:56,216 INFO L93 Difference]: Finished difference Result 946007 states and 1021774 transitions. [2023-12-22 03:42:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 03:42:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2023-12-22 03:42:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 03:42:57,155 INFO L225 Difference]: With dead ends: 946007 [2023-12-22 03:42:57,155 INFO L226 Difference]: Without dead ends: 605563 [2023-12-22 03:42:57,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 03:42:57,291 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 405 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 03:42:57,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 496 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 03:42:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605563 states.