/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:41:29,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:41:29,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:41:29,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:41:29,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:41:29,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:41:29,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:41:29,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:41:29,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:41:29,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:41:29,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:41:29,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:41:29,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:41:29,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:41:29,466 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:41:29,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:41:29,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:41:29,467 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:41:29,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:41:29,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:41:29,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:41:29,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:41:29,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:41:29,468 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:41:29,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:41:29,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:41:29,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:41:29,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:41:29,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:41:29,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:41:29,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:41:29,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:41:29,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:41:29,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:41:29,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:41:29,472 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:41:29,472 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:41:29,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:41:29,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:41:29,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:41:29,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:41:29,709 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:41:29,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2023-12-25 07:41:30,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:41:30,937 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:41:30,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2023-12-25 07:41:30,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78dd1fcd1/4c4d2af5bf4442438397bae9b0b9f7ac/FLAG0f0162764 [2023-12-25 07:41:30,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78dd1fcd1/4c4d2af5bf4442438397bae9b0b9f7ac [2023-12-25 07:41:30,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:41:30,983 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:41:30,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:41:30,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:41:30,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:41:30,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:41:30" (1/1) ... [2023-12-25 07:41:30,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac97872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:30, skipping insertion in model container [2023-12-25 07:41:30,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:41:30" (1/1) ... [2023-12-25 07:41:31,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:41:31,197 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2023-12-25 07:41:31,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:41:31,219 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:41:31,255 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2023-12-25 07:41:31,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:41:31,269 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:41:31,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31 WrapperNode [2023-12-25 07:41:31,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:41:31,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:41:31,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:41:31,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:41:31,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,310 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 315 [2023-12-25 07:41:31,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:41:31,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:41:31,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:41:31,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:41:31,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,338 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 07:41:31,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:41:31,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:41:31,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:41:31,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:41:31,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (1/1) ... [2023-12-25 07:41:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:41:31,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:41:31,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 07:41:31,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 07:41:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:41:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:41:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:41:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:41:31,506 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:41:31,507 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:41:31,829 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:41:31,863 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:41:31,863 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 07:41:31,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:41:31 BoogieIcfgContainer [2023-12-25 07:41:31,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:41:31,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:41:31,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:41:31,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:41:31,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:41:30" (1/3) ... [2023-12-25 07:41:31,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441a25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:41:31, skipping insertion in model container [2023-12-25 07:41:31,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:31" (2/3) ... [2023-12-25 07:41:31,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441a25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:41:31, skipping insertion in model container [2023-12-25 07:41:31,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:41:31" (3/3) ... [2023-12-25 07:41:31,869 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2023-12-25 07:41:31,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:41:31,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:41:31,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:41:31,927 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;@58f374f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:41:31,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:41:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:41:31,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:31,936 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] [2023-12-25 07:41:31,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:31,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:31,942 INFO L85 PathProgramCache]: Analyzing trace with hash -936899003, now seen corresponding path program 1 times [2023-12-25 07:41:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550402686] [2023-12-25 07:41:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:31,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:31,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:31,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:31,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 07:41:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:32,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:41:32,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:32,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:32,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:32,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550402686] [2023-12-25 07:41:32,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550402686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:32,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:32,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:41:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723019464] [2023-12-25 07:41:32,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:32,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:41:32,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:32,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:41:32,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:41:32,138 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 77 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:32,169 INFO L93 Difference]: Finished difference Result 122 states and 208 transitions. [2023-12-25 07:41:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:41:32,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-12-25 07:41:32,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:32,178 INFO L225 Difference]: With dead ends: 122 [2023-12-25 07:41:32,178 INFO L226 Difference]: Without dead ends: 76 [2023-12-25 07:41:32,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:41:32,183 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:32,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-25 07:41:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-25 07:41:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.76) internal successors, (132), 75 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 132 transitions. [2023-12-25 07:41:32,214 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 132 transitions. Word has length 20 [2023-12-25 07:41:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:32,214 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 132 transitions. [2023-12-25 07:41:32,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 132 transitions. [2023-12-25 07:41:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:41:32,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:32,216 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] [2023-12-25 07:41:32,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:32,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:32,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:32,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1769720391, now seen corresponding path program 1 times [2023-12-25 07:41:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:32,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425406170] [2023-12-25 07:41:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:32,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:32,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:32,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:32,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 07:41:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:32,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:32,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:32,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:32,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:32,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425406170] [2023-12-25 07:41:32,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425406170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:32,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:32,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:41:32,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171708740] [2023-12-25 07:41:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:32,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:41:32,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:32,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:41:32,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:32,515 INFO L87 Difference]: Start difference. First operand 76 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:32,571 INFO L93 Difference]: Finished difference Result 120 states and 201 transitions. [2023-12-25 07:41:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:41:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-12-25 07:41:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:32,574 INFO L225 Difference]: With dead ends: 120 [2023-12-25 07:41:32,574 INFO L226 Difference]: Without dead ends: 76 [2023-12-25 07:41:32,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:32,575 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:32,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-25 07:41:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-25 07:41:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2023-12-25 07:41:32,586 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 20 [2023-12-25 07:41:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:32,586 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2023-12-25 07:41:32,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2023-12-25 07:41:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 07:41:32,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:32,589 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] [2023-12-25 07:41:32,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 07:41:32,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:32,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:32,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1805949634, now seen corresponding path program 1 times [2023-12-25 07:41:32,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599083215] [2023-12-25 07:41:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:32,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:32,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:32,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:32,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 07:41:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:32,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:32,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:33,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:33,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599083215] [2023-12-25 07:41:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599083215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:33,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:33,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:41:33,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384798400] [2023-12-25 07:41:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:33,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:41:33,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:33,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:41:33,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:33,421 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:33,571 INFO L93 Difference]: Finished difference Result 322 states and 497 transitions. [2023-12-25 07:41:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:41:33,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-25 07:41:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:33,577 INFO L225 Difference]: With dead ends: 322 [2023-12-25 07:41:33,577 INFO L226 Difference]: Without dead ends: 281 [2023-12-25 07:41:33,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:33,578 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 412 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:33,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 512 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:41:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-25 07:41:33,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 154. [2023-12-25 07:41:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.4901960784313726) internal successors, (228), 153 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 228 transitions. [2023-12-25 07:41:33,598 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 228 transitions. Word has length 50 [2023-12-25 07:41:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:33,598 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 228 transitions. [2023-12-25 07:41:33,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 228 transitions. [2023-12-25 07:41:33,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 07:41:33,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:33,599 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] [2023-12-25 07:41:33,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-25 07:41:33,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:33,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:33,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:33,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1110513490, now seen corresponding path program 1 times [2023-12-25 07:41:33,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:33,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968868503] [2023-12-25 07:41:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:33,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:33,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:33,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:33,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 07:41:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:33,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:33,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:33,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:33,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968868503] [2023-12-25 07:41:33,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968868503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:33,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:33,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926908104] [2023-12-25 07:41:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:33,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:33,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:33,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:33,933 INFO L87 Difference]: Start difference. First operand 154 states and 228 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:33,950 INFO L93 Difference]: Finished difference Result 376 states and 586 transitions. [2023-12-25 07:41:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:33,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-25 07:41:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:33,953 INFO L225 Difference]: With dead ends: 376 [2023-12-25 07:41:33,953 INFO L226 Difference]: Without dead ends: 257 [2023-12-25 07:41:33,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:33,959 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 42 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:33,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 157 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-12-25 07:41:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2023-12-25 07:41:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.5236220472440944) internal successors, (387), 254 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 387 transitions. [2023-12-25 07:41:33,974 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 387 transitions. Word has length 52 [2023-12-25 07:41:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:33,974 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 387 transitions. [2023-12-25 07:41:33,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 387 transitions. [2023-12-25 07:41:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:41:33,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:33,976 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] [2023-12-25 07:41:33,984 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 (5)] Ended with exit code 0 [2023-12-25 07:41:34,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:34,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:34,194 INFO L85 PathProgramCache]: Analyzing trace with hash -13730052, now seen corresponding path program 1 times [2023-12-25 07:41:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946744307] [2023-12-25 07:41:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:34,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:34,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:34,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 07:41:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:34,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:34,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:34,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:34,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:34,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946744307] [2023-12-25 07:41:34,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946744307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:34,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:34,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:41:34,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852443566] [2023-12-25 07:41:34,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:34,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:41:34,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:34,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:41:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:34,300 INFO L87 Difference]: Start difference. First operand 255 states and 387 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:34,322 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2023-12-25 07:41:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:41:34,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-25 07:41:34,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:34,323 INFO L225 Difference]: With dead ends: 269 [2023-12-25 07:41:34,323 INFO L226 Difference]: Without dead ends: 267 [2023-12-25 07:41:34,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:34,324 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:34,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 283 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-25 07:41:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 263. [2023-12-25 07:41:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.5038167938931297) internal successors, (394), 262 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 394 transitions. [2023-12-25 07:41:34,329 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 394 transitions. Word has length 53 [2023-12-25 07:41:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:34,330 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 394 transitions. [2023-12-25 07:41:34,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 394 transitions. [2023-12-25 07:41:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:34,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:34,331 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] [2023-12-25 07:41:34,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:34,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1384081850, now seen corresponding path program 1 times [2023-12-25 07:41:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:34,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428113654] [2023-12-25 07:41:34,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:34,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:34,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:34,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 07:41:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:34,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:34,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:34,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:34,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428113654] [2023-12-25 07:41:34,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428113654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:34,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:34,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:34,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182807443] [2023-12-25 07:41:34,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:34,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:34,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:34,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:34,641 INFO L87 Difference]: Start difference. First operand 263 states and 394 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:34,653 INFO L93 Difference]: Finished difference Result 503 states and 774 transitions. [2023-12-25 07:41:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-25 07:41:34,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:34,654 INFO L225 Difference]: With dead ends: 503 [2023-12-25 07:41:34,654 INFO L226 Difference]: Without dead ends: 378 [2023-12-25 07:41:34,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:34,655 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:34,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-25 07:41:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2023-12-25 07:41:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.52) internal successors, (570), 375 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 570 transitions. [2023-12-25 07:41:34,661 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 570 transitions. Word has length 54 [2023-12-25 07:41:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:34,661 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 570 transitions. [2023-12-25 07:41:34,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 570 transitions. [2023-12-25 07:41:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:34,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:34,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:34,678 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 (7)] Ended with exit code 0 [2023-12-25 07:41:34,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:34,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:34,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1612721082, now seen corresponding path program 1 times [2023-12-25 07:41:34,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800603158] [2023-12-25 07:41:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:34,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:34,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:34,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 07:41:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:34,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:34,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:34,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:34,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:34,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800603158] [2023-12-25 07:41:34,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800603158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:34,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:34,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:34,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193539347] [2023-12-25 07:41:34,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:34,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:34,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:34,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:34,964 INFO L87 Difference]: Start difference. First operand 376 states and 570 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:34,979 INFO L93 Difference]: Finished difference Result 1018 states and 1573 transitions. [2023-12-25 07:41:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:34,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-25 07:41:34,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:34,981 INFO L225 Difference]: With dead ends: 1018 [2023-12-25 07:41:34,981 INFO L226 Difference]: Without dead ends: 679 [2023-12-25 07:41:34,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:34,982 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 52 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:34,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 214 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-12-25 07:41:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 677. [2023-12-25 07:41:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 1.5236686390532543) internal successors, (1030), 676 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1030 transitions. [2023-12-25 07:41:35,017 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1030 transitions. Word has length 54 [2023-12-25 07:41:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:35,017 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 1030 transitions. [2023-12-25 07:41:35,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1030 transitions. [2023-12-25 07:41:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:35,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:35,018 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] [2023-12-25 07:41:35,022 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 (8)] Ended with exit code 0 [2023-12-25 07:41:35,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,222 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:35,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2056590150, now seen corresponding path program 1 times [2023-12-25 07:41:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:35,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033155621] [2023-12-25 07:41:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:35,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:35,226 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:35,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 07:41:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:35,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:35,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:35,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:35,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:35,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033155621] [2023-12-25 07:41:35,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033155621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:35,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:35,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:35,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755946269] [2023-12-25 07:41:35,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:35,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:35,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:35,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:35,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:35,305 INFO L87 Difference]: Start difference. First operand 677 states and 1030 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:35,327 INFO L93 Difference]: Finished difference Result 1885 states and 2890 transitions. [2023-12-25 07:41:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-25 07:41:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:35,331 INFO L225 Difference]: With dead ends: 1885 [2023-12-25 07:41:35,331 INFO L226 Difference]: Without dead ends: 1245 [2023-12-25 07:41:35,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:35,332 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 50 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:35,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 216 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:35,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2023-12-25 07:41:35,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1243. [2023-12-25 07:41:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1242 states have (on average 1.5120772946859904) internal successors, (1878), 1242 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1878 transitions. [2023-12-25 07:41:35,350 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1878 transitions. Word has length 54 [2023-12-25 07:41:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:35,350 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1878 transitions. [2023-12-25 07:41:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1878 transitions. [2023-12-25 07:41:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:35,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:35,351 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] [2023-12-25 07:41:35,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:35,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,571 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:35,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1349643706, now seen corresponding path program 1 times [2023-12-25 07:41:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:35,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667833853] [2023-12-25 07:41:35,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:35,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:35,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:35,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 07:41:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:35,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:35,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:35,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:35,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:35,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667833853] [2023-12-25 07:41:35,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667833853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:35,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:35,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:35,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010452882] [2023-12-25 07:41:35,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:35,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:35,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:35,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:35,652 INFO L87 Difference]: Start difference. First operand 1243 states and 1878 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:35,679 INFO L93 Difference]: Finished difference Result 3511 states and 5308 transitions. [2023-12-25 07:41:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:35,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-25 07:41:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:35,685 INFO L225 Difference]: With dead ends: 3511 [2023-12-25 07:41:35,685 INFO L226 Difference]: Without dead ends: 2305 [2023-12-25 07:41:35,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:35,686 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 48 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:35,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2023-12-25 07:41:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2303. [2023-12-25 07:41:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2302 states have (on average 1.4900086880973067) internal successors, (3430), 2302 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3430 transitions. [2023-12-25 07:41:35,720 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3430 transitions. Word has length 54 [2023-12-25 07:41:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:35,721 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 3430 transitions. [2023-12-25 07:41:35,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3430 transitions. [2023-12-25 07:41:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:35,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:35,721 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] [2023-12-25 07:41:35,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-25 07:41:35,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,923 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:35,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1652665018, now seen corresponding path program 1 times [2023-12-25 07:41:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343045521] [2023-12-25 07:41:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:35,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:35,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:35,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:35,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 07:41:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:35,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:35,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:35,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:35,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:35,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343045521] [2023-12-25 07:41:35,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343045521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:35,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:35,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:35,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234137360] [2023-12-25 07:41:35,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:36,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:36,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:36,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:36,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:36,000 INFO L87 Difference]: Start difference. First operand 2303 states and 3430 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:36,046 INFO L93 Difference]: Finished difference Result 6547 states and 9712 transitions. [2023-12-25 07:41:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-25 07:41:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:36,058 INFO L225 Difference]: With dead ends: 6547 [2023-12-25 07:41:36,058 INFO L226 Difference]: Without dead ends: 4281 [2023-12-25 07:41:36,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:36,062 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 54 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:36,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 220 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2023-12-25 07:41:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4279. [2023-12-25 07:41:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4279 states, 4278 states have (on average 1.4600280504908836) internal successors, (6246), 4278 states have internal predecessors, (6246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4279 states to 4279 states and 6246 transitions. [2023-12-25 07:41:36,178 INFO L78 Accepts]: Start accepts. Automaton has 4279 states and 6246 transitions. Word has length 54 [2023-12-25 07:41:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:36,178 INFO L495 AbstractCegarLoop]: Abstraction has 4279 states and 6246 transitions. [2023-12-25 07:41:36,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4279 states and 6246 transitions. [2023-12-25 07:41:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 07:41:36,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:36,180 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:36,184 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 (11)] Ended with exit code 0 [2023-12-25 07:41:36,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:36,382 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:36,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 824044613, now seen corresponding path program 1 times [2023-12-25 07:41:36,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443182282] [2023-12-25 07:41:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:36,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:36,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:36,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:36,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 07:41:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:36,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:36,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:36,898 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:36,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:37,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443182282] [2023-12-25 07:41:37,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443182282] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:37,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:37,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:37,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118315319] [2023-12-25 07:41:37,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:37,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:37,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:37,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:37,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:37,117 INFO L87 Difference]: Start difference. First operand 4279 states and 6246 transitions. Second operand has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:38,343 INFO L93 Difference]: Finished difference Result 13617 states and 19755 transitions. [2023-12-25 07:41:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:41:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-25 07:41:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:38,366 INFO L225 Difference]: With dead ends: 13617 [2023-12-25 07:41:38,366 INFO L226 Difference]: Without dead ends: 10639 [2023-12-25 07:41:38,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-25 07:41:38,372 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 613 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:38,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 953 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:41:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2023-12-25 07:41:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 8519. [2023-12-25 07:41:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8519 states, 8518 states have (on average 1.456445174923691) internal successors, (12406), 8518 states have internal predecessors, (12406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8519 states to 8519 states and 12406 transitions. [2023-12-25 07:41:38,594 INFO L78 Accepts]: Start accepts. Automaton has 8519 states and 12406 transitions. Word has length 72 [2023-12-25 07:41:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:38,594 INFO L495 AbstractCegarLoop]: Abstraction has 8519 states and 12406 transitions. [2023-12-25 07:41:38,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 8519 states and 12406 transitions. [2023-12-25 07:41:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 07:41:38,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:38,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:38,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:38,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:38,798 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:38,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash 595405381, now seen corresponding path program 1 times [2023-12-25 07:41:38,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:38,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134956549] [2023-12-25 07:41:38,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:38,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:38,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:38,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:38,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 07:41:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:38,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:38,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:38,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:38,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:38,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:38,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134956549] [2023-12-25 07:41:38,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134956549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:38,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:38,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:38,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978379153] [2023-12-25 07:41:38,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:38,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:38,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:38,902 INFO L87 Difference]: Start difference. First operand 8519 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:39,027 INFO L93 Difference]: Finished difference Result 14493 states and 21211 transitions. [2023-12-25 07:41:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-25 07:41:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:39,054 INFO L225 Difference]: With dead ends: 14493 [2023-12-25 07:41:39,054 INFO L226 Difference]: Without dead ends: 6011 [2023-12-25 07:41:39,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:39,060 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 47 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:39,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 226 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2023-12-25 07:41:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 6004. [2023-12-25 07:41:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6004 states, 6003 states have (on average 1.4557721139430284) internal successors, (8739), 6003 states have internal predecessors, (8739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8739 transitions. [2023-12-25 07:41:39,178 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8739 transitions. Word has length 72 [2023-12-25 07:41:39,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:39,178 INFO L495 AbstractCegarLoop]: Abstraction has 6004 states and 8739 transitions. [2023-12-25 07:41:39,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8739 transitions. [2023-12-25 07:41:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 07:41:39,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:39,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:39,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 07:41:39,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:39,382 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:39,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -265147731, now seen corresponding path program 1 times [2023-12-25 07:41:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378377548] [2023-12-25 07:41:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:39,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:39,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:39,383 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:39,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 07:41:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:39,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:39,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:39,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:39,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378377548] [2023-12-25 07:41:39,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378377548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:39,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:39,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:39,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700315877] [2023-12-25 07:41:39,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:39,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:39,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:39,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:39,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:39,465 INFO L87 Difference]: Start difference. First operand 6004 states and 8739 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:39,528 INFO L93 Difference]: Finished difference Result 8984 states and 13085 transitions. [2023-12-25 07:41:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:39,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-25 07:41:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:39,532 INFO L225 Difference]: With dead ends: 8984 [2023-12-25 07:41:39,532 INFO L226 Difference]: Without dead ends: 3030 [2023-12-25 07:41:39,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:39,536 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 43 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:39,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 211 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-12-25 07:41:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3028. [2023-12-25 07:41:39,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3027 states have (on average 1.4360753221010902) internal successors, (4347), 3027 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4347 transitions. [2023-12-25 07:41:39,617 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4347 transitions. Word has length 74 [2023-12-25 07:41:39,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:39,617 INFO L495 AbstractCegarLoop]: Abstraction has 3028 states and 4347 transitions. [2023-12-25 07:41:39,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4347 transitions. [2023-12-25 07:41:39,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 07:41:39,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:39,619 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:39,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:39,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:39,821 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:39,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 740089334, now seen corresponding path program 1 times [2023-12-25 07:41:39,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:39,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500174521] [2023-12-25 07:41:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:39,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:39,823 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:39,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 07:41:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:39,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:39,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:40,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:40,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:40,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:40,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500174521] [2023-12-25 07:41:40,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500174521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:40,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:40,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:40,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15675109] [2023-12-25 07:41:40,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:40,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:40,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:40,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:40,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:40,533 INFO L87 Difference]: Start difference. First operand 3028 states and 4347 transitions. Second operand has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:41,597 INFO L93 Difference]: Finished difference Result 11436 states and 16351 transitions. [2023-12-25 07:41:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:41:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-25 07:41:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:41,609 INFO L225 Difference]: With dead ends: 11436 [2023-12-25 07:41:41,609 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:41:41,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:41:41,636 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 706 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 868 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:41:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:41:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6292. [2023-12-25 07:41:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6291 states have (on average 1.4120171673819744) internal successors, (8883), 6291 states have internal predecessors, (8883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 8883 transitions. [2023-12-25 07:41:41,763 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 8883 transitions. Word has length 75 [2023-12-25 07:41:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:41,763 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 8883 transitions. [2023-12-25 07:41:41,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 8883 transitions. [2023-12-25 07:41:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:41:41,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:41,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:41,781 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 (15)] Ended with exit code 0 [2023-12-25 07:41:41,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:41,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:41,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1992426602, now seen corresponding path program 1 times [2023-12-25 07:41:41,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:41,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611681736] [2023-12-25 07:41:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:41,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:41,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:41,969 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:41,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 07:41:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:42,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:42,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:42,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:42,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:42,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611681736] [2023-12-25 07:41:42,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611681736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:42,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:42,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:42,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719594184] [2023-12-25 07:41:42,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:42,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:42,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:42,052 INFO L87 Difference]: Start difference. First operand 6292 states and 8883 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:42,112 INFO L93 Difference]: Finished difference Result 9416 states and 13301 transitions. [2023-12-25 07:41:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-25 07:41:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:42,116 INFO L225 Difference]: With dead ends: 9416 [2023-12-25 07:41:42,116 INFO L226 Difference]: Without dead ends: 3174 [2023-12-25 07:41:42,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:42,121 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 39 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:42,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2023-12-25 07:41:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3172. [2023-12-25 07:41:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3171 states have (on average 1.3935666982024597) internal successors, (4419), 3171 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4419 transitions. [2023-12-25 07:41:42,209 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4419 transitions. Word has length 77 [2023-12-25 07:41:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:42,209 INFO L495 AbstractCegarLoop]: Abstraction has 3172 states and 4419 transitions. [2023-12-25 07:41:42,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4419 transitions. [2023-12-25 07:41:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 07:41:42,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:42,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:42,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:42,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:42,412 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:42,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2045360857, now seen corresponding path program 1 times [2023-12-25 07:41:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246343418] [2023-12-25 07:41:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:42,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:42,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:42,416 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:42,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 07:41:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:42,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:42,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:42,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:43,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:43,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246343418] [2023-12-25 07:41:43,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246343418] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:43,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:43,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:43,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307794442] [2023-12-25 07:41:43,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:43,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:43,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:43,161 INFO L87 Difference]: Start difference. First operand 3172 states and 4419 transitions. Second operand has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:44,115 INFO L93 Difference]: Finished difference Result 11580 states and 16087 transitions. [2023-12-25 07:41:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:41:44,115 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 0 states have call successors, (0), 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 78 [2023-12-25 07:41:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:44,125 INFO L225 Difference]: With dead ends: 11580 [2023-12-25 07:41:44,125 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:41:44,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:41:44,128 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 612 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:44,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 789 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:41:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:41:44,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6580. [2023-12-25 07:41:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6579 states have (on average 1.372093023255814) internal successors, (9027), 6579 states have internal predecessors, (9027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 9027 transitions. [2023-12-25 07:41:44,297 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 9027 transitions. Word has length 78 [2023-12-25 07:41:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 6580 states and 9027 transitions. [2023-12-25 07:41:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 9027 transitions. [2023-12-25 07:41:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 07:41:44,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:44,298 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:44,300 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 [2023-12-25 07:41:44,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:44,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:44,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -854497319, now seen corresponding path program 1 times [2023-12-25 07:41:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135804420] [2023-12-25 07:41:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:44,502 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:44,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 07:41:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:44,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:44,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:44,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:44,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135804420] [2023-12-25 07:41:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135804420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:44,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:44,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449426668] [2023-12-25 07:41:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:44,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:44,629 INFO L87 Difference]: Start difference. First operand 6580 states and 9027 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:44,691 INFO L93 Difference]: Finished difference Result 9848 states and 13517 transitions. [2023-12-25 07:41:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:44,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-25 07:41:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:44,696 INFO L225 Difference]: With dead ends: 9848 [2023-12-25 07:41:44,696 INFO L226 Difference]: Without dead ends: 3318 [2023-12-25 07:41:44,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:44,701 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:44,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 181 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-25 07:41:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3316. [2023-12-25 07:41:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 3315 states have (on average 1.3547511312217195) internal successors, (4491), 3315 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4491 transitions. [2023-12-25 07:41:44,799 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4491 transitions. Word has length 80 [2023-12-25 07:41:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:44,799 INFO L495 AbstractCegarLoop]: Abstraction has 3316 states and 4491 transitions. [2023-12-25 07:41:44,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4491 transitions. [2023-12-25 07:41:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 07:41:44,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:44,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:44,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:45,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:45,003 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:45,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:45,003 INFO L85 PathProgramCache]: Analyzing trace with hash -935590838, now seen corresponding path program 1 times [2023-12-25 07:41:45,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:45,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829569220] [2023-12-25 07:41:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:45,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:45,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:45,004 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:45,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 07:41:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:45,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:45,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:45,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:45,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:45,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:45,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829569220] [2023-12-25 07:41:45,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829569220] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:45,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:45,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:45,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890679659] [2023-12-25 07:41:45,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:45,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:45,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:45,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:45,847 INFO L87 Difference]: Start difference. First operand 3316 states and 4491 transitions. Second operand has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:46,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:46,744 INFO L93 Difference]: Finished difference Result 11724 states and 15823 transitions. [2023-12-25 07:41:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:41:46,745 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 0 states have call successors, (0), 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 81 [2023-12-25 07:41:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:46,759 INFO L225 Difference]: With dead ends: 11724 [2023-12-25 07:41:46,760 INFO L226 Difference]: Without dead ends: 8458 [2023-12-25 07:41:46,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:41:46,765 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 515 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:46,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 802 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:41:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2023-12-25 07:41:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6868. [2023-12-25 07:41:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6868 states, 6867 states have (on average 1.3355176933158583) internal successors, (9171), 6867 states have internal predecessors, (9171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6868 states to 6868 states and 9171 transitions. [2023-12-25 07:41:47,008 INFO L78 Accepts]: Start accepts. Automaton has 6868 states and 9171 transitions. Word has length 81 [2023-12-25 07:41:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:47,008 INFO L495 AbstractCegarLoop]: Abstraction has 6868 states and 9171 transitions. [2023-12-25 07:41:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.625) internal successors, (154), 16 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6868 states and 9171 transitions. [2023-12-25 07:41:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 07:41:47,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:47,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:47,012 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 (19)] Ended with exit code 0 [2023-12-25 07:41:47,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:47,211 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:47,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1921625942, now seen corresponding path program 1 times [2023-12-25 07:41:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217784041] [2023-12-25 07:41:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:47,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:47,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:47,213 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:47,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 07:41:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:47,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:47,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:47,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:47,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217784041] [2023-12-25 07:41:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217784041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:47,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:47,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:47,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414531918] [2023-12-25 07:41:47,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:47,302 INFO L87 Difference]: Start difference. First operand 6868 states and 9171 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:47,373 INFO L93 Difference]: Finished difference Result 10200 states and 13606 transitions. [2023-12-25 07:41:47,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:47,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-25 07:41:47,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:47,377 INFO L225 Difference]: With dead ends: 10200 [2023-12-25 07:41:47,377 INFO L226 Difference]: Without dead ends: 3382 [2023-12-25 07:41:47,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:47,383 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 31 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:47,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 166 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2023-12-25 07:41:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3380. [2023-12-25 07:41:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 1.3131103876886654) internal successors, (4437), 3379 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4437 transitions. [2023-12-25 07:41:47,516 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4437 transitions. Word has length 83 [2023-12-25 07:41:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 4437 transitions. [2023-12-25 07:41:47,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4437 transitions. [2023-12-25 07:41:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 07:41:47,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:47,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:47,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:47,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:47,720 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:47,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 113617773, now seen corresponding path program 1 times [2023-12-25 07:41:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:47,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671626266] [2023-12-25 07:41:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:47,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:47,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:47,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:47,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 07:41:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:47,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:47,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:48,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:48,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:48,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671626266] [2023-12-25 07:41:48,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671626266] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:48,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:48,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350770124] [2023-12-25 07:41:48,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:48,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:48,674 INFO L87 Difference]: Start difference. First operand 3380 states and 4437 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:49,447 INFO L93 Difference]: Finished difference Result 9618 states and 12560 transitions. [2023-12-25 07:41:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:41:49,450 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 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 84 [2023-12-25 07:41:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:49,457 INFO L225 Difference]: With dead ends: 9618 [2023-12-25 07:41:49,457 INFO L226 Difference]: Without dead ends: 6288 [2023-12-25 07:41:49,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:41:49,460 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 660 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:49,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 571 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:41:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2023-12-25 07:41:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 5758. [2023-12-25 07:41:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5757 states have (on average 1.2940767760986625) internal successors, (7450), 5757 states have internal predecessors, (7450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:49,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 7450 transitions. [2023-12-25 07:41:49,621 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 7450 transitions. Word has length 84 [2023-12-25 07:41:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:49,622 INFO L495 AbstractCegarLoop]: Abstraction has 5758 states and 7450 transitions. [2023-12-25 07:41:49,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 7450 transitions. [2023-12-25 07:41:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 07:41:49,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:49,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:49,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:49,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:49,825 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:49,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 266457861, now seen corresponding path program 1 times [2023-12-25 07:41:49,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:49,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484320211] [2023-12-25 07:41:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:49,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:49,827 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:49,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 07:41:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:49,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:41:49,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:41:49,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:41:50,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:50,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484320211] [2023-12-25 07:41:50,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484320211] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:50,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:50,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 07:41:50,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29461188] [2023-12-25 07:41:50,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:50,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:41:50,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:41:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:41:50,064 INFO L87 Difference]: Start difference. First operand 5758 states and 7450 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:50,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:50,472 INFO L93 Difference]: Finished difference Result 22082 states and 28206 transitions. [2023-12-25 07:41:50,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:41:50,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 07:41:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:50,487 INFO L225 Difference]: With dead ends: 22082 [2023-12-25 07:41:50,487 INFO L226 Difference]: Without dead ends: 16374 [2023-12-25 07:41:50,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:50,492 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:50,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 378 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:50,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16374 states. [2023-12-25 07:41:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16374 to 15952. [2023-12-25 07:41:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2320230706538775) internal successors, (19652), 15951 states have internal predecessors, (19652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19652 transitions. [2023-12-25 07:41:50,900 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19652 transitions. Word has length 86 [2023-12-25 07:41:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:50,901 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19652 transitions. [2023-12-25 07:41:50,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19652 transitions. [2023-12-25 07:41:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 07:41:50,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:50,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:50,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:51,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:51,136 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:51,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash 632869156, now seen corresponding path program 1 times [2023-12-25 07:41:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:51,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265972462] [2023-12-25 07:41:51,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:51,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:51,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:51,138 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:51,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 07:41:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:51,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:51,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:52,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:52,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:52,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265972462] [2023-12-25 07:41:52,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265972462] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:52,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:52,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:52,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019464409] [2023-12-25 07:41:52,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:52,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:52,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:52,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:52,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:52,517 INFO L87 Difference]: Start difference. First operand 15952 states and 19652 transitions. Second operand has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:53,999 INFO L93 Difference]: Finished difference Result 26604 states and 32923 transitions. [2023-12-25 07:41:54,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:41:54,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-25 07:41:54,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:54,015 INFO L225 Difference]: With dead ends: 26604 [2023-12-25 07:41:54,015 INFO L226 Difference]: Without dead ends: 16170 [2023-12-25 07:41:54,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 07:41:54,021 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 696 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:54,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 775 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:41:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16170 states. [2023-12-25 07:41:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16170 to 15952. [2023-12-25 07:41:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2181681399285311) internal successors, (19431), 15951 states have internal predecessors, (19431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19431 transitions. [2023-12-25 07:41:54,508 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19431 transitions. Word has length 131 [2023-12-25 07:41:54,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:54,509 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19431 transitions. [2023-12-25 07:41:54,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.153846153846153) internal successors, (238), 25 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19431 transitions. [2023-12-25 07:41:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 07:41:54,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:54,514 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:54,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-25 07:41:54,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:54,716 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:54,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1436289269, now seen corresponding path program 1 times [2023-12-25 07:41:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:54,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062865881] [2023-12-25 07:41:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:54,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:54,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:54,718 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:54,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 07:41:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:54,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:54,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:55,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:56,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:56,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062865881] [2023-12-25 07:41:56,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062865881] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:56,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:56,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:56,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821889778] [2023-12-25 07:41:56,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:56,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:56,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:56,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:56,109 INFO L87 Difference]: Start difference. First operand 15952 states and 19431 transitions. Second operand has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:57,865 INFO L93 Difference]: Finished difference Result 25612 states and 31446 transitions. [2023-12-25 07:41:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:41:57,865 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 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 132 [2023-12-25 07:41:57,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:57,881 INFO L225 Difference]: With dead ends: 25612 [2023-12-25 07:41:57,881 INFO L226 Difference]: Without dead ends: 18738 [2023-12-25 07:41:57,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=1500, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:41:57,885 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 885 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:57,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 924 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:41:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18738 states. [2023-12-25 07:41:58,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18738 to 15952. [2023-12-25 07:41:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.211648172528368) internal successors, (19327), 15951 states have internal predecessors, (19327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:58,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19327 transitions. [2023-12-25 07:41:58,465 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19327 transitions. Word has length 132 [2023-12-25 07:41:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:58,465 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19327 transitions. [2023-12-25 07:41:58,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19327 transitions. [2023-12-25 07:41:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 07:41:58,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:58,471 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:58,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-25 07:41:58,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:58,673 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:58,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1285607124, now seen corresponding path program 1 times [2023-12-25 07:41:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:58,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160713315] [2023-12-25 07:41:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:58,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:58,675 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:41:58,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 07:41:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:58,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:58,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:59,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:00,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160713315] [2023-12-25 07:42:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160713315] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:00,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:42:00,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894825615] [2023-12-25 07:42:00,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:00,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:00,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:00,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:00,064 INFO L87 Difference]: Start difference. First operand 15952 states and 19327 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:01,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:01,758 INFO L93 Difference]: Finished difference Result 24580 states and 29978 transitions. [2023-12-25 07:42:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:42:01,759 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 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 133 [2023-12-25 07:42:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:01,775 INFO L225 Difference]: With dead ends: 24580 [2023-12-25 07:42:01,776 INFO L226 Difference]: Without dead ends: 17946 [2023-12-25 07:42:01,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:42:01,781 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 796 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:01,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 797 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:42:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17946 states. [2023-12-25 07:42:02,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17946 to 15952. [2023-12-25 07:42:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.2048774371512758) internal successors, (19219), 15951 states have internal predecessors, (19219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19219 transitions. [2023-12-25 07:42:02,354 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19219 transitions. Word has length 133 [2023-12-25 07:42:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:02,354 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19219 transitions. [2023-12-25 07:42:02,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19219 transitions. [2023-12-25 07:42:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 07:42:02,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:02,359 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:02,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:02,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:02,562 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:02,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1201270683, now seen corresponding path program 1 times [2023-12-25 07:42:02,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:02,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226463017] [2023-12-25 07:42:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:02,563 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 [2023-12-25 07:42:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:02,564 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:02,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 07:42:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:02,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:42:02,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:03,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:03,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:03,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226463017] [2023-12-25 07:42:03,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226463017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:03,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:03,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:42:03,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865065451] [2023-12-25 07:42:03,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:03,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:03,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:03,940 INFO L87 Difference]: Start difference. First operand 15952 states and 19219 transitions. Second operand has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:05,741 INFO L93 Difference]: Finished difference Result 23434 states and 28361 transitions. [2023-12-25 07:42:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:42:05,741 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-25 07:42:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:05,757 INFO L225 Difference]: With dead ends: 23434 [2023-12-25 07:42:05,757 INFO L226 Difference]: Without dead ends: 17070 [2023-12-25 07:42:05,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:42:05,762 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 575 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:05,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 901 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:42:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17070 states. [2023-12-25 07:42:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17070 to 15952. [2023-12-25 07:42:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15952 states, 15951 states have (on average 1.1979813177857188) internal successors, (19109), 15951 states have internal predecessors, (19109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15952 states to 15952 states and 19109 transitions. [2023-12-25 07:42:06,398 INFO L78 Accepts]: Start accepts. Automaton has 15952 states and 19109 transitions. Word has length 134 [2023-12-25 07:42:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:06,398 INFO L495 AbstractCegarLoop]: Abstraction has 15952 states and 19109 transitions. [2023-12-25 07:42:06,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 25 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 15952 states and 19109 transitions. [2023-12-25 07:42:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:42:06,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:06,402 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:06,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:06,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:06,605 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:06,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1385075844, now seen corresponding path program 1 times [2023-12-25 07:42:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:06,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589209159] [2023-12-25 07:42:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:06,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:06,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:06,607 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:06,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 07:42:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:06,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:06,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:07,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:08,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:08,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589209159] [2023-12-25 07:42:08,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589209159] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:08,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:08,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:08,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864734383] [2023-12-25 07:42:08,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:08,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:08,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:08,232 INFO L87 Difference]: Start difference. First operand 15952 states and 19109 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:12,504 INFO L93 Difference]: Finished difference Result 26768 states and 31957 transitions. [2023-12-25 07:42:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 07:42:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:42:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:12,524 INFO L225 Difference]: With dead ends: 26768 [2023-12-25 07:42:12,524 INFO L226 Difference]: Without dead ends: 19412 [2023-12-25 07:42:12,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 07:42:12,533 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 586 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:12,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 2232 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 07:42:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2023-12-25 07:42:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 9924. [2023-12-25 07:42:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9924 states, 9923 states have (on average 1.193892975914542) internal successors, (11847), 9923 states have internal predecessors, (11847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9924 states to 9924 states and 11847 transitions. [2023-12-25 07:42:12,989 INFO L78 Accepts]: Start accepts. Automaton has 9924 states and 11847 transitions. Word has length 135 [2023-12-25 07:42:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:12,990 INFO L495 AbstractCegarLoop]: Abstraction has 9924 states and 11847 transitions. [2023-12-25 07:42:12,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9924 states and 11847 transitions. [2023-12-25 07:42:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:42:12,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:12,992 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:12,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 07:42:13,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:13,195 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:13,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:13,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1739781416, now seen corresponding path program 1 times [2023-12-25 07:42:13,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:13,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992520620] [2023-12-25 07:42:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:13,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:13,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:13,197 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:13,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 07:42:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:13,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:13,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:14,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:14,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:14,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992520620] [2023-12-25 07:42:14,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992520620] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:14,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:14,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528433870] [2023-12-25 07:42:14,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:14,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:14,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:14,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:14,911 INFO L87 Difference]: Start difference. First operand 9924 states and 11847 transitions. Second operand has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:19,188 INFO L93 Difference]: Finished difference Result 17574 states and 21026 transitions. [2023-12-25 07:42:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:42:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:42:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:19,202 INFO L225 Difference]: With dead ends: 17574 [2023-12-25 07:42:19,202 INFO L226 Difference]: Without dead ends: 15380 [2023-12-25 07:42:19,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:42:19,207 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 802 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:19,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2334 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 07:42:19,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15380 states. [2023-12-25 07:42:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15380 to 12734. [2023-12-25 07:42:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12734 states, 12733 states have (on average 1.1922563417890522) internal successors, (15181), 12733 states have internal predecessors, (15181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12734 states to 12734 states and 15181 transitions. [2023-12-25 07:42:19,755 INFO L78 Accepts]: Start accepts. Automaton has 12734 states and 15181 transitions. Word has length 135 [2023-12-25 07:42:19,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:19,756 INFO L495 AbstractCegarLoop]: Abstraction has 12734 states and 15181 transitions. [2023-12-25 07:42:19,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 12734 states and 15181 transitions. [2023-12-25 07:42:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:42:19,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:19,758 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:19,760 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:19,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:19,961 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:19,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -769303804, now seen corresponding path program 1 times [2023-12-25 07:42:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:19,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941774058] [2023-12-25 07:42:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:19,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:19,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:19,962 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:19,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 07:42:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:20,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:20,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:20,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:21,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:21,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941774058] [2023-12-25 07:42:21,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941774058] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:21,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:21,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:21,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850820827] [2023-12-25 07:42:21,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:21,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:21,386 INFO L87 Difference]: Start difference. First operand 12734 states and 15181 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:25,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:25,838 INFO L93 Difference]: Finished difference Result 22619 states and 27023 transitions. [2023-12-25 07:42:25,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:42:25,838 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:42:25,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:25,852 INFO L225 Difference]: With dead ends: 22619 [2023-12-25 07:42:25,852 INFO L226 Difference]: Without dead ends: 19633 [2023-12-25 07:42:25,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:42:25,855 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 887 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:25,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 2386 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 07:42:25,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19633 states. [2023-12-25 07:42:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19633 to 15937. [2023-12-25 07:42:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15937 states, 15936 states have (on average 1.1903237951807228) internal successors, (18969), 15936 states have internal predecessors, (18969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15937 states to 15937 states and 18969 transitions. [2023-12-25 07:42:26,574 INFO L78 Accepts]: Start accepts. Automaton has 15937 states and 18969 transitions. Word has length 135 [2023-12-25 07:42:26,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:26,574 INFO L495 AbstractCegarLoop]: Abstraction has 15937 states and 18969 transitions. [2023-12-25 07:42:26,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 15937 states and 18969 transitions. [2023-12-25 07:42:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:42:26,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:26,577 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:26,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-25 07:42:26,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:26,780 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:26,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash -271303000, now seen corresponding path program 1 times [2023-12-25 07:42:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:26,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878424536] [2023-12-25 07:42:26,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:26,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:26,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:26,781 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:26,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 07:42:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:26,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:26,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:27,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:28,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:28,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878424536] [2023-12-25 07:42:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878424536] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:28,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:28,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263741389] [2023-12-25 07:42:28,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:28,196 INFO L87 Difference]: Start difference. First operand 15937 states and 18969 transitions. Second operand has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:33,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:33,362 INFO L93 Difference]: Finished difference Result 28839 states and 34329 transitions. [2023-12-25 07:42:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 07:42:33,362 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:42:33,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:33,383 INFO L225 Difference]: With dead ends: 28839 [2023-12-25 07:42:33,384 INFO L226 Difference]: Without dead ends: 24761 [2023-12-25 07:42:33,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-25 07:42:33,390 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 907 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:33,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 2833 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2716 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 07:42:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24761 states. [2023-12-25 07:42:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24761 to 19275. [2023-12-25 07:42:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19275 states, 19274 states have (on average 1.1871951852236173) internal successors, (22882), 19274 states have internal predecessors, (22882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19275 states to 19275 states and 22882 transitions. [2023-12-25 07:42:34,368 INFO L78 Accepts]: Start accepts. Automaton has 19275 states and 22882 transitions. Word has length 135 [2023-12-25 07:42:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:34,369 INFO L495 AbstractCegarLoop]: Abstraction has 19275 states and 22882 transitions. [2023-12-25 07:42:34,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 19275 states and 22882 transitions. [2023-12-25 07:42:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:42:34,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:34,372 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:34,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:34,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:34,574 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:34,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1563033212, now seen corresponding path program 1 times [2023-12-25 07:42:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:34,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930275270] [2023-12-25 07:42:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:34,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:34,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:34,576 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:34,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 07:42:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:34,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:34,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:35,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:36,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:36,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930275270] [2023-12-25 07:42:36,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930275270] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:36,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:36,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:36,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172600900] [2023-12-25 07:42:36,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:36,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:36,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:36,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:36,016 INFO L87 Difference]: Start difference. First operand 19275 states and 22882 transitions. Second operand has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:42,569 INFO L93 Difference]: Finished difference Result 56600 states and 66434 transitions. [2023-12-25 07:42:42,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 07:42:42,569 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:42:42,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:42,620 INFO L225 Difference]: With dead ends: 56600 [2023-12-25 07:42:42,620 INFO L226 Difference]: Without dead ends: 50863 [2023-12-25 07:42:42,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 07:42:42,646 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 843 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:42,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2872 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 07:42:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50863 states. [2023-12-25 07:42:44,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50863 to 37148. [2023-12-25 07:42:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37148 states, 37147 states have (on average 1.1783993323821573) internal successors, (43774), 37147 states have internal predecessors, (43774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37148 states to 37148 states and 43774 transitions. [2023-12-25 07:42:44,706 INFO L78 Accepts]: Start accepts. Automaton has 37148 states and 43774 transitions. Word has length 135 [2023-12-25 07:42:44,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:44,706 INFO L495 AbstractCegarLoop]: Abstraction has 37148 states and 43774 transitions. [2023-12-25 07:42:44,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 26 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:44,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37148 states and 43774 transitions. [2023-12-25 07:42:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:42:44,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:44,722 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:42:44,725 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:44,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:44,925 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:44,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash 79489549, now seen corresponding path program 2 times [2023-12-25 07:42:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:44,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598673138] [2023-12-25 07:42:44,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:44,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:44,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:44,927 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:44,930 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 (32)] Waiting until timeout for monitored process [2023-12-25 07:42:44,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:44,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:44,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:44,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-12-25 07:42:46,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:46,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:46,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598673138] [2023-12-25 07:42:46,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598673138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:46,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:46,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:46,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699890778] [2023-12-25 07:42:46,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:46,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:46,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:46,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:46,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:46,077 INFO L87 Difference]: Start difference. First operand 37148 states and 43774 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:47,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:47,988 INFO L93 Difference]: Finished difference Result 51087 states and 61008 transitions. [2023-12-25 07:42:47,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:47,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 186 [2023-12-25 07:42:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:48,027 INFO L225 Difference]: With dead ends: 51087 [2023-12-25 07:42:48,027 INFO L226 Difference]: Without dead ends: 42785 [2023-12-25 07:42:48,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:48,034 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 424 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:48,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 434 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42785 states. [2023-12-25 07:42:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42785 to 37080. [2023-12-25 07:42:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37080 states, 37079 states have (on average 1.17047385312441) internal successors, (43400), 37079 states have internal predecessors, (43400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37080 states to 37080 states and 43400 transitions. [2023-12-25 07:42:50,048 INFO L78 Accepts]: Start accepts. Automaton has 37080 states and 43400 transitions. Word has length 186 [2023-12-25 07:42:50,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:50,048 INFO L495 AbstractCegarLoop]: Abstraction has 37080 states and 43400 transitions. [2023-12-25 07:42:50,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 37080 states and 43400 transitions. [2023-12-25 07:42:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:42:50,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:50,063 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:42:50,070 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 (32)] Ended with exit code 0 [2023-12-25 07:42:50,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:50,266 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:50,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 434195121, now seen corresponding path program 2 times [2023-12-25 07:42:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874371510] [2023-12-25 07:42:50,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:50,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:50,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:50,268 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:50,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 07:42:50,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:50,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:50,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:50,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-12-25 07:42:51,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:51,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:51,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874371510] [2023-12-25 07:42:51,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874371510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:51,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:51,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:51,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873995939] [2023-12-25 07:42:51,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:51,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:51,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:51,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:51,457 INFO L87 Difference]: Start difference. First operand 37080 states and 43400 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:53,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:53,500 INFO L93 Difference]: Finished difference Result 46922 states and 55740 transitions. [2023-12-25 07:42:53,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:53,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-25 07:42:53,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:53,538 INFO L225 Difference]: With dead ends: 46922 [2023-12-25 07:42:53,538 INFO L226 Difference]: Without dead ends: 43836 [2023-12-25 07:42:53,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:53,544 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 317 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:53,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 461 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43836 states. [2023-12-25 07:42:55,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43836 to 39508. [2023-12-25 07:42:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39508 states, 39507 states have (on average 1.1688814640443466) internal successors, (46179), 39507 states have internal predecessors, (46179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 46179 transitions. [2023-12-25 07:42:55,753 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 46179 transitions. Word has length 186 [2023-12-25 07:42:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:55,753 INFO L495 AbstractCegarLoop]: Abstraction has 39508 states and 46179 transitions. [2023-12-25 07:42:55,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 46179 transitions. [2023-12-25 07:42:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:42:55,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:55,769 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:42:55,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-25 07:42:55,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:55,971 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:55,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2074890099, now seen corresponding path program 2 times [2023-12-25 07:42:55,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:55,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356224523] [2023-12-25 07:42:55,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:55,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:55,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:55,973 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:42:55,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 07:42:56,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:56,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:56,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:56,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-12-25 07:42:57,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:57,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356224523] [2023-12-25 07:42:57,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356224523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:57,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:57,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700063162] [2023-12-25 07:42:57,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:57,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:57,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:57,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:57,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:57,363 INFO L87 Difference]: Start difference. First operand 39508 states and 46179 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:59,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:59,361 INFO L93 Difference]: Finished difference Result 48549 states and 57517 transitions. [2023-12-25 07:42:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:59,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-25 07:42:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:59,399 INFO L225 Difference]: With dead ends: 48549 [2023-12-25 07:42:59,400 INFO L226 Difference]: Without dead ends: 45443 [2023-12-25 07:42:59,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:59,406 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 270 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:59,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 573 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45443 states. [2023-12-25 07:43:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45443 to 42117. [2023-12-25 07:43:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42117 states, 42116 states have (on average 1.1676322537752872) internal successors, (49176), 42116 states have internal predecessors, (49176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42117 states to 42117 states and 49176 transitions. [2023-12-25 07:43:01,521 INFO L78 Accepts]: Start accepts. Automaton has 42117 states and 49176 transitions. Word has length 186 [2023-12-25 07:43:01,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:01,521 INFO L495 AbstractCegarLoop]: Abstraction has 42117 states and 49176 transitions. [2023-12-25 07:43:01,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 42117 states and 49176 transitions. [2023-12-25 07:43:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:43:01,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:01,535 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:43:01,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-25 07:43:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:01,737 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:01,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1576889295, now seen corresponding path program 2 times [2023-12-25 07:43:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627558617] [2023-12-25 07:43:01,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:43:01,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:01,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:01,739 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:43:01,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 07:43:01,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:43:01,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:43:01,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:43:01,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-25 07:43:02,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:43:02,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:02,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627558617] [2023-12-25 07:43:02,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627558617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:43:02,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:43:02,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:43:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254639404] [2023-12-25 07:43:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:43:02,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:43:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:43:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:43:02,923 INFO L87 Difference]: Start difference. First operand 42117 states and 49176 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:04,897 INFO L93 Difference]: Finished difference Result 50742 states and 59996 transitions. [2023-12-25 07:43:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:43:04,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 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 186 [2023-12-25 07:43:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:04,942 INFO L225 Difference]: With dead ends: 50742 [2023-12-25 07:43:04,943 INFO L226 Difference]: Without dead ends: 47594 [2023-12-25 07:43:04,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:43:04,954 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 298 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:04,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 485 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:43:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47594 states. [2023-12-25 07:43:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47594 to 44886. [2023-12-25 07:43:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44886 states, 44885 states have (on average 1.1666703798596414) internal successors, (52366), 44885 states have internal predecessors, (52366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44886 states to 44886 states and 52366 transitions. [2023-12-25 07:43:07,393 INFO L78 Accepts]: Start accepts. Automaton has 44886 states and 52366 transitions. Word has length 186 [2023-12-25 07:43:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:07,393 INFO L495 AbstractCegarLoop]: Abstraction has 44886 states and 52366 transitions. [2023-12-25 07:43:07,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44886 states and 52366 transitions. [2023-12-25 07:43:07,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 07:43:07,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:07,408 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:43:07,416 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 07:43:07,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:07,610 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:07,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:07,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1426347789, now seen corresponding path program 2 times [2023-12-25 07:43:07,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:07,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722093582] [2023-12-25 07:43:07,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:43:07,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:07,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:07,612 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:43:07,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-25 07:43:07,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:43:07,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:43:07,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:43:07,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-12-25 07:43:08,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:43:08,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722093582] [2023-12-25 07:43:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722093582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:43:08,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:43:08,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:43:08,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456546274] [2023-12-25 07:43:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:43:08,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:43:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:08,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:43:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:43:08,706 INFO L87 Difference]: Start difference. First operand 44886 states and 52366 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:11,067 INFO L93 Difference]: Finished difference Result 53598 states and 63287 transitions. [2023-12-25 07:43:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:43:11,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-12-25 07:43:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:11,121 INFO L225 Difference]: With dead ends: 53598 [2023-12-25 07:43:11,121 INFO L226 Difference]: Without dead ends: 50372 [2023-12-25 07:43:11,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:43:11,131 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 287 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:11,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 459 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:43:11,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50372 states. [2023-12-25 07:43:13,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50372 to 47664. [2023-12-25 07:43:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47664 states, 47663 states have (on average 1.1658099574093113) internal successors, (55566), 47663 states have internal predecessors, (55566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47664 states to 47664 states and 55566 transitions. [2023-12-25 07:43:13,803 INFO L78 Accepts]: Start accepts. Automaton has 47664 states and 55566 transitions. Word has length 186 [2023-12-25 07:43:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:13,803 INFO L495 AbstractCegarLoop]: Abstraction has 47664 states and 55566 transitions. [2023-12-25 07:43:13,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:13,803 INFO L276 IsEmpty]: Start isEmpty. Operand 47664 states and 55566 transitions. [2023-12-25 07:43:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:43:13,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:13,819 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:43:13,821 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 (36)] Ended with exit code 0 [2023-12-25 07:43:14,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:14,021 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:14,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1973477554, now seen corresponding path program 1 times [2023-12-25 07:43:14,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:14,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649411070] [2023-12-25 07:43:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:14,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:14,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:14,023 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:43:14,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 07:43:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:14,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:14,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:15,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:16,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649411070] [2023-12-25 07:43:16,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649411070] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:16,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:16,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:16,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85002449] [2023-12-25 07:43:16,535 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:16,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:16,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:16,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:16,536 INFO L87 Difference]: Start difference. First operand 47664 states and 55566 transitions. Second operand has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:30,654 INFO L93 Difference]: Finished difference Result 63502 states and 74078 transitions. [2023-12-25 07:43:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-25 07:43:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 0 states have call successors, (0), 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 187 [2023-12-25 07:43:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:30,709 INFO L225 Difference]: With dead ends: 63502 [2023-12-25 07:43:30,709 INFO L226 Difference]: Without dead ends: 57648 [2023-12-25 07:43:30,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-25 07:43:30,722 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1385 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 5427 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 5448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 5427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:30,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 4600 Invalid, 5448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 5427 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 07:43:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57648 states. [2023-12-25 07:43:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57648 to 25898. [2023-12-25 07:43:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25898 states, 25897 states have (on average 1.1681661968567787) internal successors, (30252), 25897 states have internal predecessors, (30252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25898 states to 25898 states and 30252 transitions. [2023-12-25 07:43:32,331 INFO L78 Accepts]: Start accepts. Automaton has 25898 states and 30252 transitions. Word has length 187 [2023-12-25 07:43:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:32,332 INFO L495 AbstractCegarLoop]: Abstraction has 25898 states and 30252 transitions. [2023-12-25 07:43:32,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.055555555555555) internal successors, (362), 36 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:32,332 INFO L276 IsEmpty]: Start isEmpty. Operand 25898 states and 30252 transitions. [2023-12-25 07:43:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:43:32,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:32,338 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:43:32,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-25 07:43:32,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:32,541 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:32,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1501247062, now seen corresponding path program 1 times [2023-12-25 07:43:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:32,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911443716] [2023-12-25 07:43:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:32,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:32,543 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:43:32,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-25 07:43:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:32,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:32,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:34,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:35,029 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:35,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911443716] [2023-12-25 07:43:35,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911443716] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:35,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:35,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:35,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052059472] [2023-12-25 07:43:35,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:35,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:35,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:35,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:35,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:35,031 INFO L87 Difference]: Start difference. First operand 25898 states and 30252 transitions. Second operand has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:50,282 INFO L93 Difference]: Finished difference Result 40043 states and 46823 transitions. [2023-12-25 07:43:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 07:43:50,283 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 0 states have call successors, (0), 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 187 [2023-12-25 07:43:50,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:50,317 INFO L225 Difference]: With dead ends: 40043 [2023-12-25 07:43:50,317 INFO L226 Difference]: Without dead ends: 34127 [2023-12-25 07:43:50,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-25 07:43:50,329 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1250 mSDsluCounter, 5250 mSDsCounter, 0 mSdLazyCounter, 6640 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 6667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:50,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 5555 Invalid, 6667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6640 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-25 07:43:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34127 states. [2023-12-25 07:43:52,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34127 to 27721. [2023-12-25 07:43:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27721 states, 27720 states have (on average 1.1665945165945166) internal successors, (32338), 27720 states have internal predecessors, (32338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27721 states to 27721 states and 32338 transitions. [2023-12-25 07:43:52,213 INFO L78 Accepts]: Start accepts. Automaton has 27721 states and 32338 transitions. Word has length 187 [2023-12-25 07:43:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:52,240 INFO L495 AbstractCegarLoop]: Abstraction has 27721 states and 32338 transitions. [2023-12-25 07:43:52,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.916666666666666) internal successors, (357), 36 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:52,240 INFO L276 IsEmpty]: Start isEmpty. Operand 27721 states and 32338 transitions. [2023-12-25 07:43:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:43:52,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:52,247 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:43:52,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-25 07:43:52,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:52,451 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:52,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:52,451 INFO L85 PathProgramCache]: Analyzing trace with hash -240597198, now seen corresponding path program 1 times [2023-12-25 07:43:52,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:52,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130083261] [2023-12-25 07:43:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:52,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:43:52,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:52,459 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:43:52,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 07:43:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:52,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:52,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:54,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:54,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:54,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130083261] [2023-12-25 07:43:54,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130083261] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:54,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:54,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765545759] [2023-12-25 07:43:54,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:54,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:54,807 INFO L87 Difference]: Start difference. First operand 27721 states and 32338 transitions. Second operand has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:44:13,025 INFO L93 Difference]: Finished difference Result 43042 states and 50176 transitions. [2023-12-25 07:44:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-25 07:44:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 0 states have call successors, (0), 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 187 [2023-12-25 07:44:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:44:13,064 INFO L225 Difference]: With dead ends: 43042 [2023-12-25 07:44:13,065 INFO L226 Difference]: Without dead ends: 36936 [2023-12-25 07:44:13,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6252 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-25 07:44:13,087 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 917 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 8148 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 8174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 8148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:44:13,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 6869 Invalid, 8174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 8148 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-25 07:44:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36936 states. [2023-12-25 07:44:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36936 to 29238. [2023-12-25 07:44:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29238 states, 29237 states have (on average 1.1653384410165202) internal successors, (34071), 29237 states have internal predecessors, (34071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29238 states to 29238 states and 34071 transitions. [2023-12-25 07:44:15,037 INFO L78 Accepts]: Start accepts. Automaton has 29238 states and 34071 transitions. Word has length 187 [2023-12-25 07:44:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:44:15,037 INFO L495 AbstractCegarLoop]: Abstraction has 29238 states and 34071 transitions. [2023-12-25 07:44:15,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.777777777777779) internal successors, (352), 36 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 29238 states and 34071 transitions. [2023-12-25 07:44:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:44:15,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:44:15,043 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:44:15,046 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 (39)] Forceful destruction successful, exit code 0 [2023-12-25 07:44:15,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:44:15,247 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:44:15,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:44:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1629528106, now seen corresponding path program 1 times [2023-12-25 07:44:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:44:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083517996] [2023-12-25 07:44:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:44:15,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:44:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:44:15,249 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:44:15,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-25 07:44:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:44:15,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:44:15,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:44:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:16,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:44:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:17,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:44:17,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083517996] [2023-12-25 07:44:17,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083517996] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:44:17,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:44:17,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:44:17,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565546323] [2023-12-25 07:44:17,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:44:17,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:44:17,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:44:17,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:44:17,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:44:17,630 INFO L87 Difference]: Start difference. First operand 29238 states and 34071 transitions. Second operand has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:44:36,836 INFO L93 Difference]: Finished difference Result 46255 states and 53679 transitions. [2023-12-25 07:44:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-25 07:44:36,836 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 0 states have call successors, (0), 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 187 [2023-12-25 07:44:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:44:36,877 INFO L225 Difference]: With dead ends: 46255 [2023-12-25 07:44:36,877 INFO L226 Difference]: Without dead ends: 39665 [2023-12-25 07:44:36,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-25 07:44:36,887 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 986 mSDsluCounter, 6159 mSDsCounter, 0 mSdLazyCounter, 8114 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 8139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 8114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:44:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 6497 Invalid, 8139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 8114 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-25 07:44:36,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39665 states. [2023-12-25 07:44:38,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39665 to 30059. [2023-12-25 07:44:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30059 states, 30058 states have (on average 1.1639164282387384) internal successors, (34985), 30058 states have internal predecessors, (34985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30059 states to 30059 states and 34985 transitions. [2023-12-25 07:44:38,888 INFO L78 Accepts]: Start accepts. Automaton has 30059 states and 34985 transitions. Word has length 187 [2023-12-25 07:44:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:44:38,888 INFO L495 AbstractCegarLoop]: Abstraction has 30059 states and 34985 transitions. [2023-12-25 07:44:38,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.63888888888889) internal successors, (347), 36 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 30059 states and 34985 transitions. [2023-12-25 07:44:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-25 07:44:38,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:44:38,895 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:44:38,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-25 07:44:39,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:44:39,099 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:44:39,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:44:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1677512587, now seen corresponding path program 1 times [2023-12-25 07:44:39,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:44:39,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865056715] [2023-12-25 07:44:39,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:44:39,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:44:39,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:44:39,101 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:44:39,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-25 07:44:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:44:39,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:44:39,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:44:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:40,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:44:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:41,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:44:41,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865056715] [2023-12-25 07:44:41,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865056715] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:44:41,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:44:41,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:44:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641132554] [2023-12-25 07:44:41,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:44:41,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:44:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:44:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:44:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:44:41,483 INFO L87 Difference]: Start difference. First operand 30059 states and 34985 transitions. Second operand has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:44:58,231 INFO L93 Difference]: Finished difference Result 75356 states and 87243 transitions. [2023-12-25 07:44:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-25 07:44:58,233 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 0 states have call successors, (0), 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 188 [2023-12-25 07:44:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:44:58,295 INFO L225 Difference]: With dead ends: 75356 [2023-12-25 07:44:58,295 INFO L226 Difference]: Without dead ends: 69218 [2023-12-25 07:44:58,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-25 07:44:58,307 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 875 mSDsluCounter, 5398 mSDsCounter, 0 mSdLazyCounter, 6941 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 5681 SdHoareTripleChecker+Invalid, 6960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:44:58,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 5681 Invalid, 6960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 6941 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-25 07:44:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69218 states. [2023-12-25 07:45:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69218 to 60555. [2023-12-25 07:45:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60555 states, 60554 states have (on average 1.1596261188360801) internal successors, (70220), 60554 states have internal predecessors, (70220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60555 states to 60555 states and 70220 transitions. [2023-12-25 07:45:02,502 INFO L78 Accepts]: Start accepts. Automaton has 60555 states and 70220 transitions. Word has length 188 [2023-12-25 07:45:02,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:45:02,502 INFO L495 AbstractCegarLoop]: Abstraction has 60555 states and 70220 transitions. [2023-12-25 07:45:02,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.222222222222221) internal successors, (368), 36 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 60555 states and 70220 transitions. [2023-12-25 07:45:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:45:02,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:45:02,530 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:45:02,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-25 07:45:02,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:45:02,733 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:45:02,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:45:02,733 INFO L85 PathProgramCache]: Analyzing trace with hash 505918395, now seen corresponding path program 2 times [2023-12-25 07:45:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:45:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202964933] [2023-12-25 07:45:02,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:45:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:45:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:45:02,735 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:45:02,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 07:45:02,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:45:02,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:45:02,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:45:02,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:45:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:05,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:45:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:06,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:45:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202964933] [2023-12-25 07:45:06,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202964933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:45:06,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:45:06,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:45:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036280105] [2023-12-25 07:45:06,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:45:06,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:45:06,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:45:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:45:06,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:45:06,171 INFO L87 Difference]: Start difference. First operand 60555 states and 70220 transitions. Second operand has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:42,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:45:42,211 INFO L93 Difference]: Finished difference Result 76817 states and 89141 transitions. [2023-12-25 07:45:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-12-25 07:45:42,212 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 0 states have call successors, (0), 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 238 [2023-12-25 07:45:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:45:42,274 INFO L225 Difference]: With dead ends: 76817 [2023-12-25 07:45:42,274 INFO L226 Difference]: Without dead ends: 70782 [2023-12-25 07:45:42,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13783 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=5103, Invalid=41337, Unknown=0, NotChecked=0, Total=46440 [2023-12-25 07:45:42,283 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 1577 mSDsluCounter, 8895 mSDsCounter, 0 mSdLazyCounter, 13526 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 13554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 13526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:45:42,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 9298 Invalid, 13554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 13526 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-25 07:45:42,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70782 states. [2023-12-25 07:45:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70782 to 31491. [2023-12-25 07:45:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31491 states, 31490 states have (on average 1.1635757383296284) internal successors, (36641), 31490 states have internal predecessors, (36641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31491 states to 31491 states and 36641 transitions. [2023-12-25 07:45:45,325 INFO L78 Accepts]: Start accepts. Automaton has 31491 states and 36641 transitions. Word has length 238 [2023-12-25 07:45:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:45:45,326 INFO L495 AbstractCegarLoop]: Abstraction has 31491 states and 36641 transitions. [2023-12-25 07:45:45,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.08695652173913) internal successors, (464), 46 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:45,326 INFO L276 IsEmpty]: Start isEmpty. Operand 31491 states and 36641 transitions. [2023-12-25 07:45:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:45:45,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:45:45,338 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:45:45,342 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 07:45:45,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:45:45,541 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:45:45,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:45:45,542 INFO L85 PathProgramCache]: Analyzing trace with hash 33687903, now seen corresponding path program 2 times [2023-12-25 07:45:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:45:45,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822645083] [2023-12-25 07:45:45,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:45:45,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:45:45,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:45:45,544 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:45:45,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-25 07:45:45,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:45:45,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:45:45,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:45:45,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:45:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 31 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:48,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:45:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 31 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:49,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:45:49,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822645083] [2023-12-25 07:45:49,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822645083] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:45:49,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:45:49,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:45:49,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566970801] [2023-12-25 07:45:49,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:45:49,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:45:49,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:45:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:45:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:45:49,293 INFO L87 Difference]: Start difference. First operand 31491 states and 36641 transitions. Second operand has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:46:24,902 INFO L93 Difference]: Finished difference Result 74680 states and 86299 transitions. [2023-12-25 07:46:24,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-12-25 07:46:24,903 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 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 238 [2023-12-25 07:46:24,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:46:24,971 INFO L225 Difference]: With dead ends: 74680 [2023-12-25 07:46:24,972 INFO L226 Difference]: Without dead ends: 71854 [2023-12-25 07:46:24,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13085 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=4703, Invalid=39607, Unknown=0, NotChecked=0, Total=44310 [2023-12-25 07:46:24,984 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1380 mSDsluCounter, 8705 mSDsCounter, 0 mSdLazyCounter, 12564 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 9107 SdHoareTripleChecker+Invalid, 12590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:46:24,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 9107 Invalid, 12590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12564 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-12-25 07:46:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71854 states. [2023-12-25 07:46:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71854 to 32795. [2023-12-25 07:46:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32795 states, 32794 states have (on average 1.1628956516435933) internal successors, (38136), 32794 states have internal predecessors, (38136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32795 states to 32795 states and 38136 transitions. [2023-12-25 07:46:28,610 INFO L78 Accepts]: Start accepts. Automaton has 32795 states and 38136 transitions. Word has length 238 [2023-12-25 07:46:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:46:28,610 INFO L495 AbstractCegarLoop]: Abstraction has 32795 states and 38136 transitions. [2023-12-25 07:46:28,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 32795 states and 38136 transitions. [2023-12-25 07:46:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:46:28,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:46:28,622 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:46:28,628 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 07:46:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:46:28,826 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:46:28,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:46:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 432431291, now seen corresponding path program 1 times [2023-12-25 07:46:28,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:46:28,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366385355] [2023-12-25 07:46:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:46:28,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:46:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:46:28,828 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:46:28,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-25 07:46:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:46:29,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:46:29,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:46:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:31,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:46:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:32,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:46:32,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366385355] [2023-12-25 07:46:32,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366385355] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:46:32,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:46:32,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:46:32,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830034840] [2023-12-25 07:46:32,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:46:32,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:46:32,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:46:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:46:32,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:46:32,409 INFO L87 Difference]: Start difference. First operand 32795 states and 38136 transitions. Second operand has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:47:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:47:18,527 INFO L93 Difference]: Finished difference Result 45163 states and 52454 transitions. [2023-12-25 07:47:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-12-25 07:47:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 0 states have call successors, (0), 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 238 [2023-12-25 07:47:18,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:47:18,566 INFO L225 Difference]: With dead ends: 45163 [2023-12-25 07:47:18,567 INFO L226 Difference]: Without dead ends: 41103 [2023-12-25 07:47:18,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22401 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=7202, Invalid=61180, Unknown=0, NotChecked=0, Total=68382 [2023-12-25 07:47:18,582 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1590 mSDsluCounter, 10151 mSDsCounter, 0 mSdLazyCounter, 14631 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 10613 SdHoareTripleChecker+Invalid, 14665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 14631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:47:18,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 10613 Invalid, 14665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 14631 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-25 07:47:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41103 states. [2023-12-25 07:47:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41103 to 16321. [2023-12-25 07:47:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16321 states, 16320 states have (on average 1.1665441176470588) internal successors, (19038), 16320 states have internal predecessors, (19038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:47:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16321 states to 16321 states and 19038 transitions. [2023-12-25 07:47:20,815 INFO L78 Accepts]: Start accepts. Automaton has 16321 states and 19038 transitions. Word has length 238 [2023-12-25 07:47:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:47:20,816 INFO L495 AbstractCegarLoop]: Abstraction has 16321 states and 19038 transitions. [2023-12-25 07:47:20,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.869565217391305) internal successors, (454), 46 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:47:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16321 states and 19038 transitions. [2023-12-25 07:47:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-25 07:47:20,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:47:20,823 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:47:20,828 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 (44)] Forceful destruction successful, exit code 0 [2023-12-25 07:47:21,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:47:21,026 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:47:21,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:47:21,026 INFO L85 PathProgramCache]: Analyzing trace with hash -956499617, now seen corresponding path program 1 times [2023-12-25 07:47:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:47:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308769751] [2023-12-25 07:47:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:47:21,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:47:21,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:47:21,028 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:47:21,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-25 07:47:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:47:21,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:47:21,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:47:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:47:23,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:47:24,497 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:47:24,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:47:24,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308769751] [2023-12-25 07:47:24,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308769751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:47:24,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:47:24,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:47:24,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509236609] [2023-12-25 07:47:24,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:47:24,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:47:24,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:47:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:47:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:47:24,499 INFO L87 Difference]: Start difference. First operand 16321 states and 19038 transitions. Second operand has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:12,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:12,956 INFO L93 Difference]: Finished difference Result 51386 states and 59311 transitions. [2023-12-25 07:48:12,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-25 07:48:12,957 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 0 states have call successors, (0), 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 238 [2023-12-25 07:48:12,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:12,999 INFO L225 Difference]: With dead ends: 51386 [2023-12-25 07:48:12,999 INFO L226 Difference]: Without dead ends: 47898 [2023-12-25 07:48:13,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23297 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-25 07:48:13,009 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1636 mSDsluCounter, 10640 mSDsCounter, 0 mSdLazyCounter, 15595 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 11131 SdHoareTripleChecker+Invalid, 15630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 15595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:13,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 11131 Invalid, 15630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 15595 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-12-25 07:48:13,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47898 states. [2023-12-25 07:48:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47898 to 35307. [2023-12-25 07:48:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35307 states, 35306 states have (on average 1.1619554749900867) internal successors, (41024), 35306 states have internal predecessors, (41024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 41024 transitions. [2023-12-25 07:48:18,008 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 41024 transitions. Word has length 238 [2023-12-25 07:48:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:18,009 INFO L495 AbstractCegarLoop]: Abstraction has 35307 states and 41024 transitions. [2023-12-25 07:48:18,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.76086956521739) internal successors, (449), 46 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 41024 transitions. [2023-12-25 07:48:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-25 07:48:18,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:18,023 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:18,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:18,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:48:18,227 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:18,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -715688004, now seen corresponding path program 2 times [2023-12-25 07:48:18,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:18,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130757959] [2023-12-25 07:48:18,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:48:18,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:48:18,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:18,229 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:48:18,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-25 07:48:18,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:48:18,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:48:18,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:48:18,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 14 proven. 510 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:48:18,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 14 proven. 510 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:48:18,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130757959] [2023-12-25 07:48:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130757959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:18,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-25 07:48:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181451728] [2023-12-25 07:48:18,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:18,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:48:18,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:48:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:48:18,972 INFO L87 Difference]: Start difference. First operand 35307 states and 41024 transitions. Second operand has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:28,064 INFO L93 Difference]: Finished difference Result 79202 states and 91230 transitions. [2023-12-25 07:48:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:48:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 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 239 [2023-12-25 07:48:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:28,113 INFO L225 Difference]: With dead ends: 79202 [2023-12-25 07:48:28,114 INFO L226 Difference]: Without dead ends: 50218 [2023-12-25 07:48:28,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:48:28,124 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 96 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:28,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1535 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:48:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50218 states. [2023-12-25 07:48:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50218 to 44103. [2023-12-25 07:48:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44103 states, 44102 states have (on average 1.1526234637884902) internal successors, (50833), 44102 states have internal predecessors, (50833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44103 states to 44103 states and 50833 transitions. [2023-12-25 07:48:34,631 INFO L78 Accepts]: Start accepts. Automaton has 44103 states and 50833 transitions. Word has length 239 [2023-12-25 07:48:34,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:34,631 INFO L495 AbstractCegarLoop]: Abstraction has 44103 states and 50833 transitions. [2023-12-25 07:48:34,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 44103 states and 50833 transitions. [2023-12-25 07:48:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-25 07:48:34,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:34,643 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:34,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-25 07:48:34,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:48:34,847 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:34,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash -111811316, now seen corresponding path program 1 times [2023-12-25 07:48:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:34,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506026001] [2023-12-25 07:48:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:34,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:48:34,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:34,849 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:48:34,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-25 07:48:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:35,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:48:35,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 91 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:37,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 91 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:38,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506026001] [2023-12-25 07:48:38,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506026001] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:38,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:38,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:48:38,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8483030] [2023-12-25 07:48:38,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:38,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:48:38,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:38,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:48:38,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:48:38,496 INFO L87 Difference]: Start difference. First operand 44103 states and 50833 transitions. Second operand has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:32,235 INFO L93 Difference]: Finished difference Result 114988 states and 132163 transitions. [2023-12-25 07:49:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-25 07:49:32,236 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 0 states have call successors, (0), 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 239 [2023-12-25 07:49:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:32,338 INFO L225 Difference]: With dead ends: 114988 [2023-12-25 07:49:32,338 INFO L226 Difference]: Without dead ends: 108407 [2023-12-25 07:49:32,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17864 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=6041, Invalid=50841, Unknown=0, NotChecked=0, Total=56882 [2023-12-25 07:49:32,349 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 1661 mSDsluCounter, 9280 mSDsCounter, 0 mSdLazyCounter, 13620 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 9715 SdHoareTripleChecker+Invalid, 13654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 13620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:32,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 9715 Invalid, 13654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 13620 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-12-25 07:49:32,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108407 states. [2023-12-25 07:49:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108407 to 92622. [2023-12-25 07:49:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92622 states, 92621 states have (on average 1.149372172617441) internal successors, (106456), 92621 states have internal predecessors, (106456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92622 states to 92622 states and 106456 transitions. [2023-12-25 07:49:45,950 INFO L78 Accepts]: Start accepts. Automaton has 92622 states and 106456 transitions. Word has length 239 [2023-12-25 07:49:45,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:45,950 INFO L495 AbstractCegarLoop]: Abstraction has 92622 states and 106456 transitions. [2023-12-25 07:49:45,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.0) internal successors, (460), 46 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 92622 states and 106456 transitions. [2023-12-25 07:49:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-12-25 07:49:46,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:46,018 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:49:46,022 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 (47)] Forceful destruction successful, exit code 0 [2023-12-25 07:49:46,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:46,223 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:46,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1740336658, now seen corresponding path program 3 times [2023-12-25 07:49:46,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:46,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20247005] [2023-12-25 07:49:46,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-25 07:49:46,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:49:46,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:46,225 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:49:46,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-25 07:49:46,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-12-25 07:49:46,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:49:46,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-25 07:49:46,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 236 proven. 678 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 07:49:51,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:49:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 320 proven. 594 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 07:49:55,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:49:55,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20247005] [2023-12-25 07:49:55,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20247005] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:49:55,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:49:55,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2023-12-25 07:49:55,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154285124] [2023-12-25 07:49:55,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:49:55,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-25 07:49:55,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:49:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-25 07:49:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2738, Unknown=0, NotChecked=0, Total=2970 [2023-12-25 07:49:55,675 INFO L87 Difference]: Start difference. First operand 92622 states and 106456 transitions. Second operand has 55 states, 55 states have (on average 10.218181818181819) internal successors, (562), 55 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-25 07:55:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 514 states. [2023-12-25 07:55:52,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 673 SyntacticMatches, 2 SemanticMatches, 561 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126197 ImplicationChecksByTransitivity, 326.0s TimeCoverageRelationStatistics Valid=31364, Invalid=285042, Unknown=0, NotChecked=0, Total=316406 [2023-12-25 07:55:52,857 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 2816 mSDsluCounter, 2983 mSDsCounter, 0 mSdLazyCounter, 7084 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 7225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 7084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:52,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 3095 Invalid, 7225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [141 Valid, 7084 Invalid, 0 Unknown, 0 Unchecked, 28.5s Time] [2023-12-25 07:55:52,858 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 07:55:52,864 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 07:55:52,893 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 07:55:52,893 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 07:55:53,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:55:53,065 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (92622states) and FLOYD_HOARE automaton (currently 514 states, 55 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 563 known predicates. [2023-12-25 07:55:53,069 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-25 07:55:53,070 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 07:55:53,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 07:55:53 BoogieIcfgContainer [2023-12-25 07:55:53,072 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 07:55:53,072 INFO L158 Benchmark]: Toolchain (without parser) took 862088.71ms. Allocated memory was 304.1MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 264.8MB in the beginning and 1.0GB in the end (delta: -773.9MB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.35ms. Allocated memory is still 304.1MB. Free memory was 264.8MB in the beginning and 248.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.41ms. Allocated memory is still 304.1MB. Free memory was 248.5MB in the beginning and 246.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: Boogie Preprocessor took 42.40ms. Allocated memory is still 304.1MB. Free memory was 246.0MB in the beginning and 242.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: RCFGBuilder took 509.66ms. Allocated memory is still 304.1MB. Free memory was 242.8MB in the beginning and 214.3MB in the end (delta: 28.5MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-25 07:55:53,072 INFO L158 Benchmark]: TraceAbstraction took 861206.59ms. Allocated memory was 304.1MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 213.5MB in the beginning and 1.0GB in the end (delta: -825.2MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2023-12-25 07:55:53,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 284.35ms. Allocated memory is still 304.1MB. Free memory was 264.8MB in the beginning and 248.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.41ms. Allocated memory is still 304.1MB. Free memory was 248.5MB in the beginning and 246.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.40ms. Allocated memory is still 304.1MB. Free memory was 246.0MB in the beginning and 242.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 509.66ms. Allocated memory is still 304.1MB. Free memory was 242.8MB in the beginning and 214.3MB in the end (delta: 28.5MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 861206.59ms. Allocated memory was 304.1MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 213.5MB in the beginning and 1.0GB in the end (delta: -825.2MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 425]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 425). Cancelled while NwaCegarLoop was constructing difference of abstraction (92622states) and FLOYD_HOARE automaton (currently 514 states, 55 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 563 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 861.2s, OverallIterations: 47, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.4s, AutomataDifference: 719.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28895 SdHoareTripleChecker+Valid, 124.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28895 mSDsluCounter, 110020 SdHoareTripleChecker+Invalid, 113.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101296 mSDsCounter, 666 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132733 IncrementalHoareTripleChecker+Invalid, 133399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 666 mSolverCounterUnsat, 8724 mSDtfsCounter, 132733 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12884 GetRequests, 9741 SyntacticMatches, 2 SemanticMatches, 3140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250293 ImplicationChecksByTransitivity, 525.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92622occurred in iteration=46, InterpolantAutomatonStates: 2050, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 66.2s AutomataMinimizationTime, 46 MinimizatonAttempts, 270532 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 61.0s InterpolantComputationTime, 6117 NumberOfCodeBlocks, 5487 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 10379 ConstructedInterpolants, 3420 QuantifiedInterpolants, 165811 SizeOfPredicates, 290 NumberOfNonLiveVariables, 11735 ConjunctsInSsa, 497 ConjunctsInUnsatCore, 74 InterpolantComputations, 20 PerfectInterpolantSequences, 4299/15369 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown